Title: Speckle interferometry at the Blanco and SOAR telescopes in 2008 and 2009 Authors: Tokovinin A., Mason B.D., Hartkopf W.I. Table: Notes to individual systems ================================================================================ Byte-by-byte Description of file: datafile7.txt -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 10 A10 --- WDS WDS designation (1) 12- 25 A14 --- DisLet Discoverer designation 27-385 A359 --- Note Notes -------------------------------------------------------------------------------- Note (1): Based on arcminute-precision J2000 coordinates. -------------------------------------------------------------------------------- 00028+0208 BU 281 AB C at 44'' is optical 00059+1805 STF 3060 AB CPM in WDS 00059-3020 RST 5180 AB dy=1.2, dm(WDS)=0.2. The status of C at 5'' is unknown. 00063-4905 HDO 180 Companion at 4'', outside field. A has a planetary companion. 00098-3347 SEE 3 Bad orbit. 00121-5832 RST 4739 dm(Blanco) too large, WDS: dm=0.17mag 00174+0853 A 1803 AB WDS lists 3 more companions, but only C at 3.4'' is physical (MSC). Two orbits for AB. C component itself is unresolved. 00271-0753 A 431 dy=0.6, dm(WDS)=0.11. 00310-1005 BU 1158 BC The orbit by Baz1991a does not match, predicting 0.13'' separation. Component A at 79'' is optical. On 2008.5460 we obtained a very different measure (356.2deg, 0.0475'', Delta y = 0.8), presumably pointing a wrong object (maybe the component A?). 00315-6257 I 260 CD AB at 27'' from CD is physical (MSC) in this system beta 1,2 Tuc containing 6 known components. 00321-0511 A 111 AB Companion C at 2.5'' physical. D at 113'' is listed, likely optical. 00324+0657 MCA 1 Aa,Ab Companion B at 27'' is physical (MSC). The 0.03'' occultation companion is not seen. 00327-6302 B 8 Unresolved in y-filter, false resolution in H-alpha is artifact. 00335-5520 I 45 AB Companion C at 6.7'' is physical, estimated period of AB is 500yr (MSC) 00345-0433 D 2 AB Bad orbit. The system appears to be near periastron. C at 19'' is physical, SB1 P=80.7d (MSC), D at 204'' optical? 00352-0336 HO 212 AB C at 24'' is optical? 00363-3818 RST 5183 One of the components is an SB, no orbit (MSC) 00424+0410 STT 18 AB Companion C at 46'' is optical 00426-0652 RST 4154 AB Companion C at 2'' can be physical 00518-0810 RST 4160 AB The AB pair is unresolved, WDS lists last measure 0.2'' in 1980, dm=0.5. Companion C at 8'' is physical 00522-2237 STN 3 AB Companion C is optical 00533+0405 A 2307 Bad orbit 00558-1832 B 645 Unresolved. dm=0.3, last measure in 1959 at 0.2'' separation. 00596-0111 A 1903 AB Companion C at 6'' is physical (MSC). 01061-4643 SLR 1 AB Bad orbit. C at 58'' is optical. 01071-0036 HDS 144 AB Companion C at 1.1'' (V=13mag). Estimated period of AB 40yr (MSC). 01084-5515 RST 1205 AB Companion C at 7'' is physical, A is SB2, P=1.67d (MSC). 01101-1425 HDS 153 Unresolved Hipparcos binary of 0.1'', dm=0.9. No confirming observations since 1991. 01137+0735 BU 1029 BC Companion A at 23'' is physical (MSC). The 1.8'' system BC is not resolved, either because of the large dm=5.9 or because companion C is outside the field. 01144-0755 WSI 70 Aa,Ab New pair, this is the A component of STFA 3. Estimated period of Aa,Ab is 6yr. 01158+0947 A 2102 Bad orbit. 01158-6853 I 27 CD Quadruple system kappa Tuc. The pair AB at 318'' is physical (MSC). 01198-0031 FIN 337 BC Triple with STF 113A, BC. Residuals to the BC orbit are irregular, possibly due to a subsystem? 01277+0521 BU 1164 AB Companion C at 140'' is optical. 01316-5322 I 264 AB Companion C at 40'', physical? 01350-2955 BU 1000 AB-C Known triple with DAW 31 AB (0.2''), which itself contains an eclipsing binary (MSC). 01424-0645 A 1 The quadrant is changed to match the orbit, so dm=-0.11. 01559+0151 STF 186 The quadrant is changed to match the orbit, dm=-0.08. 01560-5137 HJ 3473 A The A component of this 4.9'' pair is unresolved here. 02020+0246 STF 202 AB Companions C,D are optical (MSC). 02022-2402 HDS 271 AB New triple with subsystem TOK 41 Ba,Bb (0.09''), estimated period 13yr. 02039-4525 RST 2272 The primary component is an SB2 without orbit (MSC), it is not resolved here. 02057-2423 I 454 AB New triple with subsystem WSI 71 Aa,Ab (0.04'') and B component at 0.86''. See text for detailed discussion. 02087-1005 HU 16 Bad orbit. 02128-0224 TOK 39 Aa,Ab This 94-day SB2 was resolved in 2007. The resolution in August 2008 could be marginal (or artifact), unresolved in October 2008. Companions B at 16.6'' is physical (MSC), C at 173'' is likely optical. 02193-0259 JOY 1 Aa,Ab Companions B and D are listed in the WDS. 02225-2349 TOK 40 Kappa Fornax was first resolved in 2007. Astrometric orbit. See the text. 02361+0653 GKI 1 AB The unresolved astrometric companion at 3.2'' is too faint, dm=10.8? Companion A at 165'' is physical (MSC). 02412-0042 STF 295 Components A,B were observed individually, found unresolved. 02415-7128 B 1923 One of the components is SB. Estimated priod of AB is 70yr (MSC). 02442-2530 FIN 379 Aa,Ab Bad orbit. In October 2008 the pair closed down below the resolution limit, it opened up again in September 2009 (new unpublished observation at SOAR). Companion B at 12''. 02449+1007 TOK 1 Aa,Ab Companion C at 158'' is optical. 02456-7114 HDS 357 Estimated period 100yr, eclipsing subsystem CN Hyi (MSC). 02512+0141 A 2338 Bad orbit. 02568-3609 HDS 378 Aa,Ab The Hipparcos pair Aa,Ab (0.3'', dm=1.3) is unresolved, no other confirming observations since 1991. CPM companion B at 27''. 02572-2458 BEU 4 Ca,Cb Known quadruple with BU 741 AB (0.9'') at 29'' from BEU 4Ca,Cb (0.05'') 03003-1118 A 2611 Bad orbit. 03019-1633 RST 2292 BC Pair AB at 7.5'' from BC, physical (MSC). Estimated period of BC is 40yr (MSC), which might explain the large change in {rho} since the last measure in 2002.8: (138deg, 1.30'') . 03182-6230 BNU 2 Aa,Ab This pair is likely bogus, unresolved here, no other confirmations. 03184-0056 AC 2 AB The white dwarf component C at 53'' is CPM (MSC). 03236-4005 I 468 Bad orbit. 03244-1539 A 2909 AB AB is unresolved, the orbit by Mlr1955a predicts 0.14''. Companion C at 17'' is physical. 03272+0944 HDS 433 Chi Tau. Bad orbit. A is 7.1-d SB2 with additional 145-d system (MSC). Despite the estimated separation of 0.02'', this SB is not resolved here. 03494-1956 RST 2324 Bad orbit. 03544-4021 FIN 344 AB Companion C at 23'', status unknown. Estimated period of AB is 25yr (MSC). Spectral types K0III+A3V explain why magnitude difference in Halpha is larger than in y. 03545+0510 A 1831 BC Companion A = HIP 18265 is at 59'' from BC, optical. 04002+0818 A 1936 BC Bad orbit. Companion A at 4.1'', physical (MSC). 04008+0505 A 1937 Bad orbit. 04021-3429 BU 1004 AB Bad orbit. Companion D at 64'' physical? 04049-3527 I 152 AB Known triple with CHR 224AC (0.08'')? WDS lists C at 1.3'' from A. Do we see a new 0.075'' subsystem? 04107-0452 A 2801 Bad orbit. 04119+2338 CHR 14 Bad orbit. A is 2.4-d SB1 (MSC). 04205-0119 RST 4769 Bad orbit 04215-2055 B 1935 AB Companion C at 59'' is CPM. 04215-2544 BU 744 AB Companion C at 45'' physical, common RV (MSC). Companion D is optical. 04227+1503 STT 82 AB Companion C at 62'' is CPM, just another member of Hyades? A is SB1, P=4d (MSC). 04256+1556 FIN 342 Aa,Ab Companion B at 130'' is optical? 04275-1707 HU 440 Component A is suspected eclipsing variable HH Eri (MSC). 04286+1558 MCA 15 Aa,Ab = MKT 13 at 337'' is physical (MSC). We cannot exclude the possibility that our measurement is an artifact because the position angle coincides with the direction of atmospheric dispersion. Several weak fringes are seen in the power spectrum, however, and the position agrees well with the orbit. 04287+1552 MKT 13 Aa,Ab This pair is not resolved. Component B at 337'' is MCA 15, see above. 04290+1610 HU 1080 Companion B is 21-d SB1 (MSC), a 2-mas wobble may be detectable in the AB motion. 04362+0814 A 1840 AB Bad orbit by Bdl2006a. Companion C at 6'' is physical (MSC). 04397+0952 HDS 601 Aa,Ab The nearby pair GJ 173.1, first measured by Hipparcos at 0.75'', is closing down to 0.26''. Estimated period of Aa,Ab is 45yr, the A component is a 610-d SB1 unresolved here. Companion C at 34'' is physical (MSC). 04422+0259 A 2424 Bad orbit. 04496-5353 I 342 Components A,B of this 3.1'' pair are unresolved when observed separately. 04512+1104 BU 883 AB Companion C at 15'' is optical? 04515-3454 FIN 320 Bad orbit. 04518+1339 BU 552 AB Both A and B are SB2 (MSC). The status of C at 49'' is not known. 04545-0314 RST 5501 Bad orbit. 04590-1623 BU 314 AB Companion C at 53'' is optical. 05025-2115 DON 91 AB The status of companion C at 10.4'' is not known. 05069-2135 DON 93 BC Companion A at 8.2'' is physical, estimated period of BC is 60yr (MSC). The BC pair at 12mag and 13.1mag is quite faint, but resolved here. 05079+0830 STT 98 Another 2.8'' pair STT 643 at 343'' distance has common PM, velocity and parallax (MSC). 05081+2416 HDS 674 Aa,Ab Companions B at 14'' and C at 36'' are physical, Aa is also a 58-d SB1 (MSC) 05117+0031 HU 33 V1075 Ori. A is a 25-d SB2 (MSC). 05135+0158 STT 517 AB Quadrant secure, despite orbit. The status of companion C at 6.8'' is unknown (MSC). 05145-0812 BU 555 BC The close pair BC is unresolved in 2008 and 2009. The component B is 10-d SB2, A at 9'' is physical (MSC). 05164-0139 A 844 Bad orbit. 05165-2106 DON 97 Bad orbit. 05239-0052 A 847 BC Bad orbit. Companion A at 3'' is physical and it is a 22-d SB2 (MSC). 05245-0224 DA 5 AB The close pair MCA 18 Aa,Ab (9.4-yr period) is unresolved. Four components (MSC). 05248-5219 I 345 AB Bad orbit. Companion C at 38'' is physical (MSC). 05276-2055 SEE 53 Bad orbit. 05352-4657 RST 141 Bad orbit. 05354-0555 CHR 250 Aa,Ab Orion Trapezium, many visual components listed in the WDS. 05387-0236 BU 1032 AB Companion C at 11'' is physical, other components listed. sigma Ori cluster. 05429-0648 A 494 AB Pair CD at 102'' from AB is optical (MSC). 05474-1032 MCA 22 Period 70yr estimated, the component A is 3.4-d SB2 (MSC). 05508-3945 I 1494 AB Companion C at 3.7'' is physical, estimated period of AB is 140yr (MSC) 05598-4814 HDS 814 Both components have planetary satellites, the estimated period of AB is 90yr (MSC). The wobble in the motion of AB may be detectable, leading to the measurement of the inclination of planetary orbits. 06003-3102 HU 1399 AB and TOK 9CE, see detailed comments in the text. 06024+0939 A 2715 AB Both components are SBs, companion C at 18'' is optical (MSC). 06032+1922 HDS 823 Aa,Ab The Hipparcos pair (0.1'', dm=2.1) is unresolved. Component C at 7'' is physical. 06048-4828 DUN 23 The magnitude difference is around 3mag. One deviant measurement dy=3.84 is likely caused by truncation of the companion in this wide pair. On 2008.76 the B component appeared as a close binary (36mas, 131deg, dy=3.8), but we consider this resolution as artifact. 06094+1711 HDS 838 Companion at 3.2'', outside the field. Eclipsing binary, SB3, is on T.Pribulla's program. 06098-2246 RST 3442 Companion A is a 85-d SB1 (MSC). 06122-3645 RST 4800 Bad orbit. 06145+1754 KUI 24 Companion A is 24-d SB2, estimated period of AB is 240yr (MSC). 06159+0110 RST 5225 Companion A is 2.2-d SB2 (MSC). 06171+0957 FIN 331 Aa,Ab Companion B at 63'' is optical, other components are listed in the WDS as well. 06173+0506 CAT 1 Aa,Ab Companions C at 59'' and D at 69'' are optical, E at 104'' is CPM. Fast change in position angle contradicts the orbit: is there a subsystem? 06214+0216 A 2667 Companion A is SB, without orbit (MSC). 06288-0702 CHR 167 Ca,Cb The close pair Ca,Cb is unresolved, likely bogus (no confirming observations). The pair AB at 10'' is physical, making beta Mon at leat triple (MSC). 06290+2013 BTZ 1 Aa,Ab Bad orbit for this resolved 10-yr SB1. The companion A at 113'' from Ba,Bb is physical (MSC) 06298-5014 HDO 195 CD Quadruple. The pair AB = R 65 (0.61'', P=53yr) at 12'' from CD is physical (MSC). 06300+1754 STT 141 The 0.05'' occultation companion to B is not seen here (MSC). 06314+0749 A 2817 Companion A is an SB (MSC). 06328-1110 CHR 129 This 1.6'' pair is unresolved here, likely bogus (no confirmations since 1985). 06362-3608 RST 4816 Fast retrograde motion? 06410+0954 CHR 168 Aa,Ab Bad orbit. Cluster NGC 2264, many ``physical" components (MSC). 6425-4234 I 283 One resolved measurement dy=3.84 can be an overestimate due to truncation. 06481-0948 A 1056 Bad orbit. 06485-1226 A 2935 Bad orbit. 06487+0737 A 2731 AB Component C at 27'' is CPM, seen on 2MASS images. 06545-2734 B 706 Bad orbit. 07003-2207 FIN 334 Aa,Ab Companion B at 13'', status uncertain. 07015-0942 A 3042 AB Bad orbit. Companions C,D at 11'' may be physical. 07043-0303 A 519 Bad orbit. 07092+1903 CHR 216 Unresolved in 2009, last resolution in 2000 (0.1'', dm=1.4). 07143-2621 FIN 323 Bad orbit. A spectroscopic subsystem was suspected (MSC). 07171-1202 A 2123 AB Companion C at 16'' is physical (MSC). 07185-5721 HDS 1013 Aa,Ab Known quadruple with RST 244 Ba,Bb at 2.5'' from Aa,Ab. Both pairs have estimated periods of 50-100yr (MSC). 07187-2457 FIN 313 Aa,Ab New triple with outer companion E at 0.95''. Member of the young cluster NGC2362. E may be just another cluster member, as other 3 companions listed in WDS under the name HJ 3948. Ab is a 1.3-d eclipsing system, while Aa is 155-d SB (MSC). 07277+2127 MCA 30 Aa,Ab The close subsystem is unresolved, its orbit by Msn1997a predicts separation 0.06''. Companion D at 4'' is physical (MSC). 07294-1500 STF 1104 AB The component C at 20'' is physical, components D,E are optical (MSC). The long-period orbit, after correction, may be used for calibration. 07305+0743 A 2869 Bad orbit. 07374-3458 FIN 324 AB Only one companion (presumably C) is seen, closing down and in retrograde motion. The estimated period of the close pair AB is 10yr (MSC), it could be below the diffraction limit. 07378-0236 A 534 AB-C The subsystem B 2525 AB is unresolved, its estimated period is 30yr (MSC). 07383-2522 B 731 Unresolved, last measurement in 1966 (0.2'', dm=0.2). 07411-0124 A 1968 Bad orbit. 07430-4511 GJ 284 A nearby G-dwarf resolved in 2001 and 2006 (Mason et al. 2010b) at very different positions was not resolved here. Orbital motion may be the culprit. 07518-1354 BU 101 Bad orbit. 07523-2626 WSI 54 AB New triple, with 3 companions in a tight linear configuration (a trapezium?). See the text. 07560+2342 COU 929 Bad orbit. Double lines were seen, so a combined visual-spectroscopic orbit is possible. 08017-0836 A 1580 Companion A is 1.8d Algol V635Mon (MSC). 08031-0625 A 1581 Bad orbit. 08095-4720 WSI 55 Ba,Bb Marginal resolution in the y-filter, unresolved in the Halpha filter. Multiple system gamma 2 Vel with 6 components (MSC). 08125-4616 CHR 143 Aa,Ab Known triple with SEE 96 AB (0.6''). Estimated period of CHR 143 is 10yr, orbit may be computed (MSC). 08250-4246 CHR 226 Aa,Ab Known triple with RST 4888 AB (0.4''). Estimated period of CHR 226 is 40yr, it may also contain an eclipsing subsystem (MSC). 08263-3904 B 1605 A HIP 41361 is unresolved because TOK 6AD is outside the field, at 5''. 08263-3904 B 1605 Ba,Bb AB at 8.2'' is physical, A is 1.25-d eclipsing pair NO Pup, unresolved (MSC). 08270-5242 B 1606 Bad orbit. 08275-5501 FIN 116 Bad orbit. 08276-2051 B 2179 The A component is 4.6-d SB2 and eclipsing binary VV Pyx, B may be a binary, too (MSC). 08291-4756 FIN 315 Aa,Ab Companion B at 3'' is physical (MSC), C at 19'' is optical. Orbit by Cvetkovic, 2009. 08326-1502 B 2528 Unresolved, last observation in 1942 (0.3'', dm=2.1). 08331-2436 BU 205 AB Companion C at 30'', status unknown. 08391-2240 BU 208 AB The distant companion C is optical. The companion A possibly contains an astrometric subsystem, but it is not resolved here (MSC). 08421-5245 B 1624 Bad orbit. 08474-1703 BU 586 Composite spectrum K0III+A2, a premature orbit with 962yr period was computed. 08495+0852 BU 1068 AB Bad orbit. Companion C at 18'' is physical. 08538-4731 FIN 316 Companion A is a 9-day SB2 (MSC). 08542-0229 A 1754 Bad orbit. 08585+1151 HIP 44066 This star, reported to be a 0.1'' occultation binary, is unresolved here. The component B at 11.3'' is physical (MSC). 09001-1228 HU 225 AB Status of companion C at 5.2'' is uncertain (MSC). 09008+0448 HDS 1307 AB is unresolved, last measurement in 2000 (0.5'', dm=3.7). The component C at 12'' is CPM. 09099-3022 B 1113 BC Aa,Ab at 18'' from BC is physical (MSC). 09099-3022 B 1113 A The A component (HIP 45001, measured previously at 0.17'') was observed separately and found unresolved. 09125-4032 B 1115 Bad orbit. 09125-4337 HJ 4188 AB The subsystem FIN 317 Aa,Ab is unresolved here, but was resolved in 2006.19. Estimated period of Aa,Ab is 50yr (MSC). 09128-6055 HDO 207 AB Bad orbit. The subsystem CHR 144 Aa,Ab is unresolved and has never been confirmed - bogus? 09149+0427 HEI 350 Bad orbit. 09167-0621 KUI 40 Aa,Ab is 922-d SB1, estimated separation 0.04'', not resolved here. 09173-6841 FIN 363 AB Bad orbit in disagreement with the Hipparcos parallax. Companion C at 18'' is optical (MSC). 09174-7454 I 12 AB Companion C at 7'' is physical, D is optical (MSC). 09207-0742 A 1082 AB Bad orbit. 09228-0950 A 1342 AB Companion C at 2'' is physical. 09243-3926 FIN 348 Bad orbit. A spectroscopic system is suspected, but RV variations could be due to the visual orbit (MSC). 09252-1258 NLTT 21709 Nearby G-dwarf first resolved in 2001 (Mason et al. 2010b) is confirmed here at about the same position and a little wider. 09264-4215 B 1122 Bad orbit. 09272-0913 A 1588 AB Companion C at 11'' is physical, estimated period of AB is 200yr (MSC). 09276-3500 B 2215 Astrometric and spectroscopic subsystem (771d) is unresolved here, same as B 2215? (MSC). 09293-4432 HDS 1360 Aa,Ab Companion B at 108'' is physical (MSC). 09387-3937 I 202 Bad orbit. 09412+0954 HMM 1 Aa,Ab Unresolved, the interferometric orbit by Hmm2001 predicts separation 0.004''. The Ac component at 0.6'' is not seen either. 09415-1829 BU 214 AB Triple with the new subsystem TOK 43 Aa,Ab (0.44''). The companion B at 3'' is seen, but not measured here. 09495-1033 A 1344 Bad orbit. 09525-0806 AC 5 AB Component C at 38'' is optical. 09551-2632 I 843 AB Companion C at 6'' is physical. PMS star, spectral type K1V. 10000+2433 CHR 145 DH Leo, GJ 3580. A is 1-d SB2, estimated period of AB is 15y, orbit soon? (MSC). 10043-2823 I 292 Component A is SB2, no orbit (MSC). A good calibrator! 10120-2836 B 194 Bad orbit. 10183-0326 RST 4454 AB Bad orbit, predicts 0.03''. The component C at 20'' may be physical. 10196-5724 FIN 162 Component A is 1.6-d eclipsing binary HP Car (MSC). 10205+0626 STF 1426 AB The component C at 8'' is physical (MSC), D at 34'' is listed as well. Potential calibrator. 10227+1521 STT 216 Large separation error, faint companion. 10282-2548 B 199 AB-C Known triple with FIN 308 AB (0.15''). The position angle of FIN 308 is different by {~}180deg from the ephemeris, but quadrant reversal is not allowed by the wide subsystem. 10311-2411 B 201 Aa,B The subsystem CHR 132 Aa,Ab is unresolved here and in 2006, bogus? 10328+0918 WRH 19 The occultation binary is resolved here, an SB subsystem is suspected (MSC). 10370-0850 TOK 44 Aa,Ab Triple with new subsystem TOK 44 Aa,Ab (0.1'') comprising the primary of A 556 AB. Estimated period of Aa,Ab is 5yr. 10373-4814 SEE 119 The component A is 10-day SB2 (MSC). 10375-0932 RST 3708 Bad orbit. Both new and old measures can be fitted by a different orbit. 10397+0851 STT 224 AB Component C at 2'' can be physical. 10444-6000 HDS 1534 Aa,Ab QZ Car. Components B (7.3'') and C (8.8'') are members of the cluster Collinder 228. Aa,Ab contains spectroscopic subsystems with 6d and 20.7d periods on 50-yr orbit (MSC). 10446+0530 A 2771 Bad orbit. 10452-5944 WSI 56 This confirms the new pair first reported in Mason et al. (2009). 10465-6416 FIN 364AB Bad orbit? It predicts 0.17''. New triple with component C at 0.74'', estimated period of AB-C is 300yr. Cluster IC 2603. A is a 5.5-d SB1 (MSC). 10592-8133 I 212 Bad orbit. 11042-5828 JSP 459 Aa,B The inner pair HLN 22 Aa,Ab is unresolved, last measure in 1967 (0.2'', dm=0). 11053-2718 FIN 47 AB Companion C at 18'', status unknown. 11125-1830 BU 220 Bad orbit. 11175-5906 RST 4472 BC Known triple with R 163A- BC (1.6''). The dy=2.9 measured for BC is much larger than dm=1 given in WDS. The quadrant of BC matches that of A- BC. 11190+1416 STF 1527 Bad orbit. 11221-2447 I 507 AB Young quadruple HD 98800. Close subsystem BOD 1 Ba,Bb is unresolved, A is a 262-d SB1 (MSC). Wobble in the AB motion may be detectable. The AB orbit may be improved. 11230+0408 A 2776 AB Component C at 6'' is physical (MSC). 11268-5310 I 883 Bad orbit. 11321-0332 RST 4480 BC Component A at 11'' is physical, estimated period of BC is 60yr, orbit soon? (MSC). 11330-3151 HJ 4449 A A nearby G-dwarf resolved in 2001 (Mason et al. 2010b) was not resolved here. 11446-4925 RST 9004 AB Bad orbit. Companion C at 11'' is physical? 11510-0520 MCA 36 This pair is not resolved, as well as the inner 0.02'' occultation system. Estimated period of MCA 36 is 35yr. (MSC). 11514+1148 HDS 1672 This Hipparcos binary (0.1'', dm=3.7 in 2000) is not resolved here. 12011+1300 AG Vir Triple SB, periods 0.6d and 40y. The outer system has predicted separation 0.09'', dm=3.2, unresolved here (MSC). 12018-3439 I 215 Bad orbit. A is SB2 without computed orbit (MSC). 12064-6543 FIN 367 Aa,Ab Bad orbit. Component B at 9'' is physical (MSC). 12158-2321 BU 920 Bad orbit. The quadrant from resolved photometry is correct. 12199-0040 MCA 37 Triple eta Vir. A is a 71-d SB2 resolved interferometrically (MSC). 12264-4316 HDS 1750 Unresolved Hipparcos binary (0.1'', dm=0.4 in 1991), not confirmed so far. 12283-6146 RST 4499 BC Companion A at 2'' is physical, on a 2520-yr orbit around BC. SB subsystem suspected (MSC). 12297-0320 HIP 60956 Companion A at 5'' is detected in 2MASS images, probably outside field here. A is also a 26-day SB (MSC). 12301-1324 BU 28 AB Components C,D are listed in WDS, status unknown 12347-4440 B 1718 WDS lists a companion at 1'', dm=6.5, never confirmed. It is below the detection limit here. 12357-1650 FIN 368 Aa,Ab Companion B at 12'' is physical, estimated period of FIN 368 is 20yr, orbit soon? (MSC). 12392-4022 B 1215 Bad orbit. 12417-0127 STF 1670 AB Other components C - F are likely optical. 12446-5717 FIN 65 AB Components C (12'') and D (4.5'') are listed in WDS. 12485-1543 HDS 1795 A Nearby triple GJ 1165 resolved previously in 2001 and 2006 (Mason et al. 2010b), the pair exhibited significant orbital motion here. Estimated orbital period is 2yr. Companion B at 2.7'' is physical (MSC). 12533+2115 STF 1687 AB Quadruple. C at 28'' is physical. Component A is a 8-yr SB, estimated separation 0.07'', unresolved here (MSC). 12590-0950 B 2541 Unresolved, last measure in 1983 (0.8'', dm=5), likely below the detection limit because dm=5. 12597-0349 CHR 39 Aa,Ab Companion B at 21'' is physical (MSC). 13064+2109 CHR 150 Aa,Ab Known triple with COU 11 AB (1.7''). Estimated period of CHR 150 is 12yr, orbit soon? (MSC). 13081-6518 CHR 247 Aa,Ab Wolf-Rayet multiple theta Mus, first resolved in Hartkopf et al. (1999), is confirmed here. The component B at 5'' is likely optical, A is 18-day SB2 (MSC). Estimated period of CHR 247 is 30yr, retrograde motion. 13099-0532 MCA 38 Aa,Ab Companions B at 7'' and C at 71'' are physical (MSC). 13123-5955 SEE 170 AB Companion C at 2'' is physical, D at 50'' is optical, A is 0.6-d eclipsing binary V831 Cen (MSC). 13126-6034 WSI 75 Aa,Ab New close companion to VOU 18. 13138-6335 WSI 57 The measurements confirm the new pair first reported in Mason et al. (2009). 13145-2417 FIN 297 AB Companion C at 12'' is physical (MSC). 13147-6335 MLO 3 Known triple with WSI 58 Aa,Ab (0.25'') which was first resolved in 2001 (Mason et al. 2009) and is confirmed here. Quadrant is set to match the wide pair. 13149-1122 RST 3829 Aa,Ab Bad orbit. The pair BC is optical to Aa,Ab. 13169-3436 I 1567 Bad orbit. 13175-4033 I 425 Suspected SB subsystem. estimated period of I 425 is 130yr, it is closing down (MSC). 13226-6059 FIN 208 AB Variable V790 Cen. The measured dy=2.8 is much larger than 0.7mag listed in WDS. Companion C = HR 5034 at 60'' is physical. Estimated period of FIN 208 is 20yr (MSC). 13275+2116 TOK 46 This is a newly resolved quadruple, with two SBs orbiting each other with 36-yr period (MSC). 13317-0219 HDS 1895 Fast motion, estimated period 10yr. A is a 3.25-yr SB1, could be the same system (MSC)? 13320-6519 FIN 369 Bad orbit. 13343-0019 STF 1757 AB Components C,D are likely optical. 13347-1313 BU 932 AB Companion C at 26'' may be optical. 13372-6142 I 365 AB Companion C is optical. 13377-2337 RST 2856 Bad orbit. 13396+1045 BU 612 AB Companion C is optical. 13437-4204 FIN 353 AB Known triple with RST 1741 AB-C (0.96''). Estimated period of FIN 353 is 80yr, it is closing down (MSC). 13453+0903 BU 115 AB The component C at 108'' is likely optical. 13461+0507 STF 1781 Both components are close binaries, B is eclipsing HT Vir (MSC). 13513-2423 WSI 77 A nearby G-dwarf first resolved in 2006 at 0.33'' separation (Mason et al. 2010b). The pair was not resolved at Blanco in 2008, but resolved at SOAR in 2009 (0.14'', dm=3). The large dm may be the reason for nonresolution at Blanco. 13520-3137 BU 343 Bad orbit. 13527-1843 WSI 78 Fast motion. This spectroscopic triple with outer period 6.25yr is resolved here for the first time (MSC). The primary is DL Vir. 13535-3540 HWE 28 AB Companion C at 28'' may be physical. 13539-1440 RST 3852 Bad orbit. 13563+0517 STT 273 AB Companion C at 240'', status unknown. 13583+0213 A 2167 Bad orbit. 14020-2108 LTT 5473 Nearby G-dwarf resolved previously in 2001 and 2006 (Mason et al. 2010b). The pair continues to show steady retrograde motion. 14025-2440 B 263 Component A is 1150-d SB1, estimated period of AB is 100yr (MSC). 14038-6022 RBT 1 Aa,Ab Known triple beta Cen with VOU 31 AB (0.7''), see MSC. The quadrant as determined from the wide pair does not match the orbit of Aa,Ab. Estimated period of AB is 300yr. 14040-4437 I 939 AB Companion C at 8'' is physical, estimated period of AB is 200yr, motion direct (MSC). 14109+1513 HDS 1989 Aa,Ab Companion B at 24'' is CPM (LDS 1406). 14133-0827 CHR 221 Bogus binary? Unresolved, no confirmation since discovery in 1996. 14142-0831 BU 939 AB Companion C at 88'', status unknown. 14150-6142 COO 167 Known triple with WSI 55 Ba,Bb (0.22''). The Ba,Bb pair was first reported in Mason et al. (2009). 14170-1626 TDS 9152 Tycho pair (0.4'', dm=0.2 in 1991) is unresolved here, no other confirmations. Is this a member of the HJ 1249 5'' binary? 14182-2731 SEE 502 AB Quadruple with HDS 3407CD = WSI 56 Ba,Bb (0.44'') at 3.2''. Estimated periods are 700yr (AB) and 300yr (CD) (MSC). The wide pair Aa-Ba is seen, but not fitted, hence no measure. 14225-2518 RST 5534 Unresolved, last observation in 1951 (0.2'', dm=0). 14234+0827 BU 1111 BC The orbit of BC by Sod1999 predicts 0.19'', but the pair is unresolved here. Companion A at 6'' is physical (MSC). 14262-4523 I 402 Component A is dubious SB (MSC). 14277-4113 I 1243 AB Known triple with COO 171 AB-C at 3.4''. 14282-2929 FIN 306 AB Close pair AB is unresolved here. Last measure in 1989 (0.1'', dm=0). Estimated period of AB is 15yr, more speckle data are needed! Companions C at 4'' and D at 140'' are physical (MSC). 14295-3702 HDS 2045 Aa,Ab Companion B at 12'' is physical (2MASS). Fast orbital motion! 14313-1538 BU 117 AB Status of C at 107'' is unknown. 14373-4608 FIN 318 Aa,Ab Companion B at 19'' is HIP 71502, physical (MSC). 14375+0217 A 2227 AB Known triple with CHR 42 Aa,Ab (0.19''). The quadrant of CHR 42, set by the wide pair, does not match the orbit. 14396-6050 RHD 1 80-year binary with HIP 71681, triple system alpha Cen. The components A and B are not resolved here, lack of subsystems is confirmed by precise radial velocity monitoring for planets. 14453-3609 I 528 AB The AB pair is unresolved, last measure in 1993 (0.1'', dm=0.2). Faint component C at 4.5'' is listed in the WDS, status unknown. 14462-2111 FIN 309 Bad orbit, predicts 0.18'' separation. Fast motion through periastron! 14463+0939 STF 1879 AB Components C,D are likely optical. 14464-0723 STF 1876 AB Companion C at 50'' is optical. 14485-1720 BU 346 Components A and B of this wide pair are unresolved into subsystems. 14485-3551 B 2024 AB Marginal resolution in 2008, unresolved in April 2009. Companion C at 10'' is physical 14492+1013 A 2983 Fast motion though periastron is well captured by the orbit. 14492-5924 FIN 298 AB AB is unresolved, last measure in 1993 (0.1'', dm=0). C at 37'' is physical. 14525+1844 BU 31 AB Companion C at 8'' is physical. 14565-3438 I 227 AB Companion C at 6.5'' is physical (MSC). 14567-6247 FIN 372 Bad orbit. 14575-2125 H N 28 BC Same as GJ 570 BC. Nearby quadruple, physical components B at 22'' (2130-yr orbit) and a T-dwarf D at 258'' (MSC). New observation of BC disagrees with the orbit. 14581-4852 WSI 80 A nearby G-dwarf GJ 9504 first resolved in 2006 (Mason et al. 2010b) and confirmed here. 14589+0636 WSI 81 A nearby G-dwarf first resolved in 2006 at 0.075'' separation, then again in 2008 at 0.128'' (Mason et al. 2010b). 14592-4206 HDS 2116 Aa,Ab Multiple system kappa Cen. Companion B at 4'' is physical. Estimated period of Aa,Ab is 20yr, orbit soon? (MSC). 14598-2201 Ci 18,1988 New pair. 15041-0653 HO 391 AB Companion C is optical. 15042-1530 RST 3906 Bad orbit. 15055-0701 BU 119 AB Companion C is optical. 15088-0610 RST 4534 AB Companion C at 6.9'' is physical, estimated period of AB is 170yr (MSC). 15088-4517 SEE 219 AB Bad orbit. Companion A contains eclipsing subsystem. Companion C at 6.7'' is listed, status unknown (MSC). 15122-1948 B 2351 Aa,Ab The 2'' pair BC = BU 618 at 57'' from Aa,Ab = iota Lib is physical (MSC). 15143-4242 B 1273 AB Triple with new subsystem WSI 82 Aa,Ab (0.06''). Component C at 23'' is likely optical. 15160-0454 STF 3091 AB Companion C at 12.5'' is optical. Companions D,E are likely optical. 15210-1522 MCA 41 Unresolved, possibly bogus. No confirmations since discovery in 1980. 15226-4755 SLR 20 Bad orbit. 15227-4441 COP 2 AB Companion C at 25'' is optical, A is 4.6-d SB2 (MSC). 15228-6022 RST 5014 AB Companion C at 11'' is likely physical. 15246-4835 B 1288 AB Bad orbit. Companion C at 9'' can be physical (MSC). 15290-2852 BU 1114 AB Companion C at 10'' is physical, estimated period of AB is 200yr (MSC). 15313-3349 B 2036 AB Known triple with HWE 78 AB-C (1.5''). Estimated period of AB is 70yr, orbit soon? (MSC). Companion D at 6.6'' is listed as well, found with AO, status unknown. 15317+0053 TOK 48 New pair. Motion detected? Measurements could be affected by vibrations. The resolved system may correspond to the 1.7-year astrometric orbit. 15319-1541 VZ Lib Spectroscopic quadruple (MSC). The outer system has predicted separation 0.02'', unresolved here. 15332-2429 SEE 238 Ba,Bb This is a visual quadruple with CHR 232 Aa,Ab. The two pairs of very similar magnitude are located at 9'', 301deg from each other. Our two measurements of SEE 238 do not agree with its orbit, and we cannot exclude that CHR 232 Aa,Ab was measured instead. 15348-2807 RST 1847 The new subsystem TOK 49 Aa,Ab (0.14'') is triple with AB = RST 1847, at 0.91''. Estimated period of Aab is 16yr. 15351-4110 HJ 4786 gamma Lup. The component A is 2.8-d SB1 (MSC). 15355-1447 WRH 20 Aa,Ab The close pair is unresolved (bogus?), companion B at 42'' is likely physical. 15362-3306 FIN 231 Unresolved, last measure in 1933 (0.2'', dm=0). 15377-2432 TDS 9564 Unresolved Tycho binary (0.4'', dm=0 in 1991), never confirmed. 15420+0027 A 2176 Both components are SBs (MSC). 15428-1601 BU 35 AB Companion C at 120'' is optical. 15451-3506 SEE 248 Unresolved, last measure in 1927 (0.1'', dm=0.3). 15453-5841 FIN 234 AB Near periastron! Resolved in 2008, unresolved in April 2009. The separation was around 0.20'' from 1983 to 1993. Estimated period of AB is 300yr, but it can be shorter. The component C = HIP 77156 at 32'' from AB is physical (MSC). 15462-2804 BU 620 AB CHR 50 Aa,Ab is unresolved here, but was seen in 2006. Estimated period of CHR 50 is 30yr. Companion C at 50'' is physical (MSC). 15467-3441 B 847 Unresolved, last measure in 1937 (0.1'', dm=0.4). 15467-4314 I 1276 Unresolved, last measure in 1935 (0.2'', dm=0.4). 15470-3635 HDS 2223 Unresolved Hipparcos binary (0.1'', dm=0.3 in 1991), never confirmed. 15471-5107 B 1790 Triple with new subsystem WSI 83 Ba,Bb (0.08''). 15496-0326 CHR 259 Bad orbit. 15513-0305 CHR 51 Bad orbit, predicts 0.08'' separation. 15550-1923 HU 1274 Companion C at 50'' is physical (MSC). Component A is 25-d SB1 (MSC). 15559-0210 STF 1985A The A component is unresolved, AB is not seen. 15578-4100 SEE 252 AB Companion C at 19'' is physical. AB is unresolved here, never confirmed, bogus? 16003+1140 A 1639 AB Companion C at 6'' is physical, the estimated period of AB is 130yr, motion direct (MSC). 16035-5747 SEE 258 AB iota Nor. Companion C at 10.9'' is physical (MSC). Despite small magnitude difference and separation of 0.43'' predicted by the orbit of Sod1999, the pair was not resolved at Blanco in 2008 (a wrong pointing?), but was measured in 2009. 16044-1122 STF 1998 AB Xi Sco, 5 physical components (MSC). 16054-1948 MCA 42 CE beta Sco. Bad orbit. AB at 14'' from CE is physical. A is 6.8-d SB2, 5 components total (MSC). 16057-0617 BU 948 AB Known triple with FIN 384 Aa,Ab.Companions C,D are optical (MSC). Bad orbit of FIN 384, fast motion, very close, uncertain measures? 16057-3252 SEE 264 AB Quadruple with new subsystem WSI 84 Bb,Bb (0.13'') and physical companion C at 9.6'' (MSC). Bad orbit of AB. Estimated period of Bab is 10yr. 16059+1041 HDS 2273 Aa,Ab Companion B at 225'' is physical. Aa and Ab are SBs, 5 components total (MSC). 16090-0939 WSI 85 New pair observed by request from F.Fekel. 16102-4008 I 1082 AB AB is unresolved, last measure in 1964 (0.1'', dm=0.5). Companion C at 2.7'' is possibly physical. 16120-1928 BU 120 AB nu Sco, 7 components in MSC. Resolved triple with CHR 146 Aa,Ab (0.05''). Quadrant is set to match the wide system. Estimated period of CHR 146 is 6yr, orbit soon? 16133+1332 CHR 52 Aa,Ab GJ 615.1 AB. CHR 52 is unresolved in 2008 and 2009, never confirmed, bogus? The radial velocity of C is stable over long time. The component B is at 4'' in a 1354-yr premature orbit around A. The component C at 206'' is optical (MSC). 16143-1025 RST 3936 AB Companion C at 22'' is optical? 16205-2007 B 1808 AB AB is unresolved, last measure in 1990 (0.2'', dm=0.4). C at 13'' optical? 16212+2259 HU 481 Bad orbit. 16224-3220 JSP 691 Bad orbit. 16245-3734 B 868 AB Fast motion, periastron? Companion C at 4.5'' is listed in WDS. 16247-2942 H N 39 Component at 4.2'' is outside field, the primary is unresolved. 16253-4909 COO 197 AB Bad orbit. New triple with subsystem TOK 50 Aa,Ab (0.23''), estimated period 30yr. 16278-0822 RST 3949 Component A is 27-d SB2. Estimated period of AB is 30yr, orbit soon? (MSC). 16285-7005 HIP 80686 zeta TrA, GJ 624. Suspected spectroscopic triple unresolved here, A is 13-d SB2 (MSC). 16289+1825 STF 2052 AB Companion C at 143'' is optical. 16309+0159 STF 2055 AB Companion C at 119'' is physical, D at 308'' is optical (MSC). Good calibration binary? 16318-0216 A 693 Bad orbit. 16335-1410 HDS 2341 Unresolved Hiparcos binary (0.2'', dm=0.4 in 1991), never confirmed. 16385-5728 RST 869 New triple with subsystem TOK 51 Aa,Ab (0.27''), estimated period 30yr. The quadrant is set to match the wide pair. This is a PMS multiple system. 16391-3713 FIN 340 AB Companion C at 35'' is likely optical. Estimated period of FIN 340 is 18yr, orbit soon? (MSC). 16406+0413 CHR 56 Ba,Bb Component A = HIP 81641 at 70'' is physical. Estimated period of CHR 56 is 25yr (MSC). 16430-6056 HJ 4874 AB Component C at 18'' with uncertain status is listed in WDS. 16435-0807 WRH 26 Unresolved, last measure in 1978 (0.2'', dm=0.4). 16438-5330 FIN 251 AB The subsystem CHR 147 Aa,Ab is unresolved here, never confirmed, bogus? 16459-3953 HDS 2380 Unresolved Hiparcos binary (0.1'', dm=0.1 in 1991), never confirmed. 16478-4356 I 1595 Unresolved, last measure in 1991 (0.2'', dm=0). 16542-4150 CHR 252 Aa,Ab Marginal resolution in 2009.26 (0.07, 114deg, dm=2.6) in Ha only is considered as artifact, unresolved in y-filter. Last measure in 1996. NGC 6231 cluster, Companion B at 13'' is another cluster member? MSC lists Aa as a 5.7-d SB2. 16555-0820 KUI 75 AB Quintuple system GJ 644+643. Companions C at 72'' and D at 221'' are physical, B is a 3-d SB2 (MSC). 16563-4040 HDS 2394 Also CHR 210. Component A is a 4-d SB1. Member of NGC 6231 cluster. (MSC). 17014-2639 HDS 2410 Fast orbital motion. 17018-5108 I 1306 Bad orbit, predicts 0.1'' separation. 17031-5314 HDS 2412 Aa,Ab Companion B at 25'' is optical? 17056-4106 HLN 41 Unresolved, last measure in 1969 (0.2'', dm=0). 17066+0039 BU 823 AB New triple with subsystem TOK 52 Ba,Bb (0.1''). Companion C at 173'' is optical, different RV (MSC). Estimated period of Ba,Bb is 10yr. 17082-0105 A 1145 Component A is SB (MSC). 17094-3445 HDS 2422 Unresolved Hiparcos binary (0.1'', dm=0.9 in 1991), never confirmed. 17104-1544 BU 1118 AB Calibration binary? Companions C,D are likely optical. 17146+1423 CHR 139 Aa,Ab CHR 193 is unresolved in 2009, bogus? Last measure in 1991 (0.2''). B component at 5'' is physical, a premature orbit of AB is computed. Companion B is also a 52-d SB1 (MSC). 17156-1018 BU 957 Bad orbit. 17156-3836 FIN 355 Bad orbit. 17157-0949 A 2592 New triple with close subsystem TOK 53 Ba,Bb (0.03''), estimated period 10yr. 17189-3221 I 590 The new measure is very different from the previous measures. It matches closely (but not exactly) the pair 17173-3010 = BU 1119 observed just before. Although a pointing error was possible, the fluxes and magnitude differences do not coincide, so we attribute this measure to I 590. 17190-3459 MLO 4 AB Nearby triple GJ 667 A BC. The component C at 31'' is physical, unresolved here (MSC). 17190-3849 WSI 61 Aa,Ab The new pair reported in Mason et al. (2009) was not resolved here, possibly because the secondary was too faint. 17191-4638 BSO 13 AB GJ 666 AB. The component A is unresolved here, orbit 693yr. Component C at 42'' is optical (MSC). 17198-3606 WSI 62 The new pair first reported in Mason et al. (2009) was not resolved here, possibly because the secondary was too faint. 17207-5625 FIN 255 AB Companion C at 25'' is physical. 17208-4240 I 410 Components A,B are unresolved. 17210-2107 DON 832 Companion at 4.2'' is outside the field. 17221-7007 FIN 373 Bad orbit. 17248-5913 I 385 AB Spectacular Trapezium. The new component is designated D (WSI 87 AD), because C at 17'' already exists. See the text. 17258-1918 RST 5542 AB Companion C at 3'' can be optical. 17278-1211 HU 234 AB Companion C at 6'' is physical, estimated period of AB is 400yr, motion direct (MSC). 17305-1446 HU 177 Bad orbit. 17305-1006 RST 3978 Component A is 10-d SB1. Estimated period of AB is 100yr, orbit soon? (MSC). 17314+0243 A 2386 Marginal resolution in April 2009 in H-alpha only, considered to be artifact. Twice unresolved. The existence of the pair A 2386 is thus questionable, although the variability of its components may contribute to the nonresolution. A is 418-d SB1 with composite spectrum G8III+A7V and astrometric orbit by Hipparcos. Its estimated separation is 17mas (MSC). 17315-6026 I 600 Bad orbit. 17336-3706 TNG 1 Aa,Ab lambda Sco. Fast motion is captured by the orbit, A is 6-day eclipsing and SB (MSC). 17337+1451 WSI 3 Unresolved in 2008, last measure in 2005 (0.5'', dm unknown). 17342-1910 B 1863 WDS lists the last measurement in 1937. Large magnitude difference may explain the lack of subsequent visual resolutions, but then it is not clear how the discovery observations could resolve the system. 17375-3747 B 915 AB The angle has changed by 9.5deg in 1 year, much faster than predicted by the orbit. Companion C at 14'' is physical. 17390+0240 WSI 88 New system WSI 88 (G-dwarf). This is HD 160295. 17424-4618 HDS 2505 Companion A is a 0.5-d eclipsing binary V86 Ara (MSC). 17449-5733 HLN 44 Aa,Ab The close system HLN 44 Aa,Ab is unresolved, last measure in 1969 (0.2'', dm=0). The component B at 32'' is likely optical. 17530-0755 STF 3128 AB Companion C at 93'' is optical? 17533-3444 BU 1123 Bad orbit. 17534-3454 SEE 342 The pair RST 3986 at 52'' is either physical, or simply another member of cluster NGC 6475 (MSC). RST 3986 has changed separation to 0.9'' since its last measure in 1983.72 (82.2deg, 0.51''). Estimated period of SEE 342 is 170yr. 17535-0355 V2610 Oph Newly resolved pair TOK 54, T. Pribulla's program. Estimated period 20yr. 17564+1820 MCA 49 Aa,Ab Known triple with STF 2245 AB (2.6''). Estimated period of MCA 49 is 40yr (MSC). 17575-5740 HJ 4992 AB Triple with new subsystem TOK 55 Ba,Bb (0.11'') at 2.6'' from A, which is itself unresolved. Estimated period of Ba,Bb is 10yr. 17584+0428 KUI 84 Nearby triple GJ 9609. B is 34-d SB2 (MSC). 17592-3656 HJ 5000A A is 3.3-d eclipsing SB2 V1647 Sgr, unresolved here. Companion B at 7.6'' is physical (MSC). 18003+0422 WSI 66 These measures confirm the new pair resolved in Mason et al. (2009). 18018+0118 BU 1125 AB No trace of component C at 0.4'', which most likely is bogus, to be removed from WDS. 18024+2050 HIP 88331 The quadruple system V820 Her is resolved here for the first time. Its inner subsystems have periods 0.6d and 12d (MSC). Estimated period of the resolved outer system is 11yr. 18031-0811 STF 2262 AB tau Oph. A is 184-d SB1, companion C at 100'' is optical (MSC). 18044-5953 RST 5099 Fast motion, bad orbit. 18055+0230 HIP 88601 The A component of 70 Oph = STF 2272 is unresolved, companion B is outside the field. 18092-2211 RST 3157 Bad orbit. 18093-2607 HDS 2560 Aa,Ab Companion B at 17'' is optical. A is a 38-d SB1, estimated period of Aa,Ab is 300yr (MSC). 18096+0400 STF 2281 AB Companion C at 68'' is optical (MSC). 18112-1951 BU 132 Triple with new subsystem TOK 57 Aa,Ab (0.04'') in fast motion, Estimated period of Aa,Ab is 3yr (MSC). The quadrant is set to match the wide pair. An occulation subsystem Ba with 0.024'' separation is listed, probably it is identical to Aa,Ab seen here. AB is in slow retrograde motion, estimated period 800yr. 18126-7340 HDO 284 AB New triple with subsystem TOK 58 Aa,Ab (0.31'') at 2.3'' from B, which is itself single. The quadrant is set to match the wide pair. Estimated period of Aa,Ab is 30yr. 18151-5751 HJ 5029 Estimated period 700yr, retrograde motion. 18152-2044 TOK 59 New pair from the O-star program. 18168-2500 BU 285 AB Companion C at 60'' is likely optical. 18177-1940 BU 246 New triple with subsystem WSI 89 Ba,Bb (0.06''). The quadrant is set to match the wide pair. Estimated period of Ba,Bb is 20yr. 18187-1837 BU 639 AB The pair CD at 17'' is physical, E at 145'' is physical as well? 18197-4542 CHR 148 Unresolved in 2008 and 2009, never confirmed, a bogus binary? This is SB1 with 120-d period and estimated separation of 0.015''. 18232-6130 GLE 2 Marginal resolution in H-alpha (2009.2632: 252deg, 41mas, dm=1.5), considered artifact. Twice unresolved, so the resolution is considered bogus. The component A is 2214-d SB1 with K4III primary and massive, yet invisible, companion. Estimated separation of Aa,Ab is 0.055''. Companion C at 3.4'' is physical (MSC). 18237+2146 TOK 60 Aa,Ab New binary or artifact? The resolution in 2009.261 (0.042'', 280deg, dm=1.6) in Halpha is most likely bogus. The angle of the ``binary" is roughly perpendicular to the atmospheric dispersion, but only one ``fringe" is seen in the power spectrum. Detection limits are dm=4.55 and 7.06 at 0.15'' and 1'', respectively. 18272+0012 STF 2316 Aa,Ab The close subsystem STF 2316Aa,Ab is unresolved, except on one occasion. The component A is triple SB with periods 1.9d and 386d, the 386-d pair has estimated separation of 0.027'' and magnitude difference 0.3. Companion B at 3.8'' is physical (MSC). 18277-3207 I 1023 Unresolved, last measure in 1929 (0.1'', dm=0.2). 18323-1439 CHR 73 Bad orbit, fast motion. 18331-1042 HDS 2632 Hipparcos resolved this pair at 2.8'', now it has closed down to 0.5''. 18338+1744 HU 322 AB Resolved quadruple. AB(0.056'') and CD(0.4'') at 1.6'', physical. Estimated periods are 120yr (AB) and 330yr (CD). Orbit of AB soon, fast motion through periastron. 18359+1659 STT 358 AB Component C at 200'' is optical. MSC lists another physical component at 35''. Calibrator binary? 18363-3220 HDS 2640 Unresolved Hipparcos binary (0.2'', dm=0.25 in 1991), never confirmed. 18367+0640 CHR 76 Aa,Ab The close pair CHR 76 Aa,Ab is unresolved in 2008 and 2009, bogus? Last measure in 1987 (0.2'', dm unknown). The WDS components B,C,D,E are optical. 18384-0312 A 88 AB The companion C at 18'' is likely optical (MSC). 18389-2103 WSI 90 The 0.05'' new pair is definitely resolved in both filters, but not on all pointings. Fast motion expected because the projected separation is only 0.5 AU. 18423-0720 HDS 2649 Unresolved Hipparcos binary (0.1'', dm=0.5 in 1991), never confirmed. 18434-5546 B 398 AB Bad orbit. Fast retrograde motion through periastron? 18455+0530 FIN 332 Aa,Ab Quadruple: Aa,Ab at 2.5'' from Ba,Bb, which was unresolved in 2009. See the text. 18465-0058 MCA 53 Aa,Ab Aa,Ab is unresolved on Blanco, uncertain resolutions in the y and Halpha filters at SOAR. Orbital motion and spending portions of its orbit closer than 30mas would explain the result and is consistent with published resolutions and nonresolutions. Estimated orbital period of MCA 53 is 13yr. Component A is 4.7-day SB2. Companion B at 12'' must be physical. 18494-3502 B 2463 Unresolved, last measure in 1060 (0.2'', dm=0.1). 18537-0533 A 93 Component A is a 50-d SB1 (MSC). A 1-mas wobble caused by the motion of Aa,Ab should be detectable by speckle. 18542-2254 TDT 1120 Unresolved Tycho binary (0.4'', dm=0 in 1991), never confirmed. 18564-6149 HJ 5069 AB Companion C at 14'' is optical? 19026-2953 HDO 150 AB zeta Sgr. Companion C at 72'' can be physical (MSC). 19027-0043 STF 2434 BC Companion A at 27'' is optical 19029-0342 A 3105 Unresolved in 2008, last measure in 1962 (0.1'', dm=0). 19029-5413 I 1390 Bad orbit. 19035-6845 FIN 357 Bad orbit. 19040-3804 I 1391 Bad orbit. 19070+1104 HEI 568 Companion A is SB1 and eclipsing 1.3-d binary. Estimated period of AB is 120yr, retrograde motion (MSC). 19098-1948 B 427 Unresolved in 2008 and 2009, while the orbit by Vor1934 predicts 0.13'' separation. 19098-2101 FIN 311 AB Systems AB (0.1'') and AB-C (0.3'') are unresolved here, also unresolved in 2006. Their estimated periods are 15yr and 75yr, respectively. The marginal resolution in Halpha on 2008.77 (286deg, 37mas, dm=2.7) is not accepted as real. 19120-1035 RST 4621 AB Companion C at 18'' is likely physical. 19155-2515 B 430 The subsystem Bab is a 10.8-d SB2, AB has combined visual-spectroscopic orbit (MSC). 19190-3317 I 253 Bad orbit. 19222-0735 A 102 AB Companion C at 5.5'' is physical, estimated period of AB is 150yr, it closes down (MSC). 19258-3006 I 1401 AB New triple with subsystem WSI 91 Ba,Bb (0.04''). The quadrant is set to match the wide pair. 19294-0703 KUI 91 Cepheid U Aql. Companion C at 35'' is physical, A is 1856-d SB1, astrometric effect should be detectable in the motion of AB (MSC). The 0.074'' subsystem Aa,Ab announced by Ismailov (1992) is likely bogus. Marginal resolution in Ha: 2009.27 (303deg. 47.5mas dm=1.3) is considered artifact. 19296-1239 HU 75 Bad orbit. 19320-1649 HLD 152 AB Companion C at 35'' is optical. 19398-2326 SEE 389 Bad orbit. 19399-2204 I 656 Unresolved in 2008, last measure in 1983 (0.1'', dm=0.2). 19407-0037 CHR 88 Aa,Ab Bad orbit wich contradicts the Hipparcos parallax. Companion B at 40'' is physical (MSC). 19471-1953 BU 146 Bad orbit. 19474-0148 A 2993 Bad orbit. 19488-4931 HDS 2818 Unresolved Hipparcos binary (0.2'', dm=1.1 in 1991), never confirmed. 19491-6149 I 120 AB Companion C at 14'' is physical (MSC). 19498-6454 HJ 5140 Looks like triple in Halpha, but this is a ``disk" artifact. 19520-1021 BU 148 AB Companion C at 30'' is optical. 19531-1436 CHR 90 The visual orbit with 73.5-yr period is bad. Eclipse timimg indicates period 38.4yr (Mayer 1997). Companion A is 1.2-d SB2 and eclipsing binary V505 Sgr (MSC). 19531-2528 B 454 Bad orbit. 19534-3016 I 1406 AB Companion C at 6'' is optical? 19553-0644 STF 2597 AB Status of companion C at 14'' is unknown. A is SB2 without orbit (MSC). 19573+0513 A 604 Bad orbit. 19587-4151 TDT 1895 Unresolved Tycho binary (0.5'', dm=0.1 in 1991), never confirmed. 19598-0957 HO 276 Residuals to the orbit are a bit irregular, is there a subsystem? 20096+1648 STF 2634 AB Unresolved because B at 4'' is outside the field. 20113-5613 I 1414 Component B is SB2, no orbit. Estimated period of AB is 220yr (MSC). 20123-0806 BU 1205 Bad orbit. 20210-1447 BAR 12 Ba,Bb Member of the beta Cap multiple system with 6 components (MSC). Aa,Ab = BLA 7 is unresolved, the orbit by Msn1994 predicts separation 0.08''. 20217-3637 HDS 2908 A very close pair in fast orbital motion. 20224-5630 FIN 276 Unresolved in 2008, last measure in 1931 (0.2'', dm=0). 20239-4225 BU 763 AB Bad orbit. Companion C at 15'' with unknown status. 20296-4609 I 1422 Unresolved in 2008, last measure in 1936 (0.1'', dm=0.1). 20311-1503 FIN 336 Bad orbit. 20312+0513 AG 257 Component A is 0.5-d eclipsing system MR Del. Estimated orbital period of AB is 500yr (MSC). 20322-4521 RST 5470 AB Companion C at 6'' is physical, estimated period of AB is 100yr (MSC). 20325-1637 SEE 512 Bad orbit. 20347-6319 HU 1615 Bad orbit. 20384-2100 RST 9008 Unresolved in 2008, last measure in 1969 (0.1'', dm=0). 20393-1457 HU 200 AB Component A contains a 0.052'' occultation subsystem, not seen here (MSC). 20396+0458 BAG 14 Aa,Ab GJ 795, resolved triple with KUI 99, both visual orbits are confirmed here (MSC). 20401-2852 SEE 423 AB Triple with system AB at 1.16'' and new 0.2'' pair BC. Resolved photometry gives delta m(A, BC) of 0.8. See text. 20449+1219 STF 2723 AB B 2910 Aa,Ab is unresolved. Companion C at 37'' is likely physical (MSC). Last speckle resolution of Aa,Ab dates 2005.9 (0.11''), estimated period of Aa,Ab is 50yr, so the negative result here is unexplained. 20452-3120 LDS 720 GJ 803. The component A is unresolved here, BC is a 209-yr visual binary at 78 arcmin from A (MSC). 20514-0538 STF 2729 AB Components C,D are optical. 20562-3146 B 1001 Bad orbit. 20564-5916 I 129 AB Companion C at 38'' is optical. 20568-2618 HIP 103389 The star was unresolved at Blanco on 4 nights and marginally resolved at SOAR in 2008.60 in two filters (0.07'', 70deg, dm 3), but this is an artifact. 20591+0418 STF 2737 AB Companion C at 11'' is physical, on a premature 5243-yr orbit around AB. A is 2-day SB1 (MSC). 21041+0300 WSI 6 A is a 377-d SB1, estimated period of AB is 13yr, orbit soon? (MSC). The orientation of Aa,Ab orbit can be determined by speckle astrometry, the expected amplitude of the wobble is few mas. These measures confirm the new pair first reported in Mason et al. (2001b). 21041-0549 MCA 66 Aa,Ab Triple with STF 2745B at 2.5''. Estimated period of Aa,Ab is 20yr, orbit soon? (MSC). The component B is HR 8058, physical. 21042-5520 RST 5552 AB Companion C at 13'' is physical. 21047+0332 SE 3 Aa,Ab Known quadruple: Aa,Ab and BC at 3.3'' from Aa,Ab, physical. The quadrant of Aa,Ab is set to match the wide AB pair. The orbit of Hei1988 predicts 0.30'' separation for BC, which is unresolved here 21074-0814 BU 368 AB Bad orbit. Companion C at 15'' is optical. 21094-7310 I 379 AB GJ 818.1 A BC. Companion C at 7'' is physical (MSC). AB has a 5.9-yr astrometric orbit (Goldin, 2006), frequent speckle data are needed! 21099-2424 HDS 3015 Unresolved Hipparcos binary (0.1'', dm=0.6 in 1991), never confirmed. 21114-5220 HU 1626 A is a 0.9-d eclipsing binary BR Ind (MSC). 21135+0713 BU 270 AB Companion C at 32'' is optical, but D = HD 202093 at 184'' is physical (MSC). 21143-3835 B 520 AB Companion C at 10'' is physical, estimated period of AB is 3300yr (MSC). A good calibration binary? 21145+1000 STT 535 AB delta Equ. Interferometric orbit by Muterspaugh el al. (2005) should replace the orbit by Hrt1996a in VB6. 21147-0050 A 883 AB Companion C at 22'' is physical and suspected SB, other companions are optical (MSC). 21158-5316 FIN 329 Bad orbit. 21186+1134 BU 163 AB Companion C at 29'' is likely optical, A is a 4-d SB2 (MSC). 21198-2621 BU 271 AB GJ 825.4. Bad orbit. A is a 21-d SB1. Components C,D,E are optical (MSC). 21210+0217 TDT 2913 Unresolved Tycho binary (2.3'', dm=0.2 in 1991) observed in 6'' field. 21214+1020 A 617 Component B is a 2.2-d SB1 (MSC). 21251+0923 BU 164 AB Companion C at 26'' is physical, estimated period of AB is 70yr, motion retrograde, orbit soon? (MSC). 21255+0203 A 2289 AB Bad orbit, predicts 0.16'' separation. Companion C at 15'' is physical (MSC). 21310-3633 B 1008 AB Companion C at 41'' is optical. 21378-0751 MCA 68 The pair was not resolved at SOAR in August 2008, but is resolved in October 2008. An astrometric orbit for this infrequently resolved pair has been computed by Gontcharov and Kiyaeva (2002b). 21395-0003 BU 1212 AB Companion C at 36'' is optical, A is a 5.9-d SB1 (MSC). 21400+0911 CHR 105 Unresolved in 2008.77, but was resolved in 2005.85 at 0.11''. The component A is a spectroscopic triple with 2.63-day eclipsing pair Aa1,Aa2 = EE Peg and 1464-day outer pair Aa,Ab. The wobble caused by Aa,Ab may be detectable in the motion of AB. Estimated period of AB = CHR 105 is 85yr (MSC). 21477-3054 FIN 330 AB Bad orbit, fast retrograde motion. Companion C at 33'' is optical 21479-4500 I 1446 Unresolved in 2008. Last measure in 1943 (0.4'', dm=1.0). 21499-2509 B 540 Unresolved in 2008. Last measure in 1964 (0.1'', dm=0.2). 21536-1019 FIN 358 The component A is a suspected occultation binary with 0.02'' separation (MSC). 21555+1053 BU 75 AB Companion C at 37'' is optical. 21579-5500 FIN 307 Bad orbit, fast motion. 22034-5647 HIP 108870 Unresolved here. A 0.7'' pair of T-dwarfs at 402'' is physical (MSC). 22038-0248 HO 469 AB Companion C at 55'' is optical. 22116-3428 BU 769 AB Known triple with CHR 230 Aa,Ab (0.04''). The quadrant of CHR 230 is set to match the wide pair. Estimated periods 1300yr and 110yr, Aa,Ab is in direct motion (MSC). 22152-0535 A 2599 AB The subsystem MSN 1 Aa,Ab is unresolved. 22183-5338 HDO 298 It is not clear if this is HDO 298 or another, new companion? 22266-1645 SHJ 345 AB Companions C,D are likely optical. 22294-2840 SEE 474 AB Companion C at 34'' is optical. 22300+0426 STF 2912 The 372-d SB subsystem is spurious (MSC). Our measurement dy=1.49 agrees with dV=1.43 measured by Rakos (1982) and dHp=1.54. 22333-3844 SEE 475 WDS lists the last (and only) observation in 1896, so this system is revisited after more than a 100-yr gap! 22384-0754 A 2695 Bad orbit, A is suspected SB (MSC). 22385+0218 HO 479 Bad orbit. 22388-2037 GJ 867 AC Companion B = FK Aqr at 24'' is physical, A is 40d SB2 with predicted separation 5 mas, unresolved here (MSC). 22406+0632 HU 494 Bad orbit. 22408-0333 KUI 114 Orbit by Sod1999 predicts 0.014-0.031'' separation, the pair is unresolved in 2008. A is a dubious occultation binary (MSC). 22409+1433 HO 296 AB Companion C at 72'' is optical, D at 270'' is physical (MSC). 22421-0506 HDS 3222 Aa,Ab Unresolved Hipprcos binary (0.1'', dm=0.3 in 1991), never confirmed. The components B,C are optical. 22438+0353 WSI 92 New pair, previously unobserved G-dwarf. 22451-0240 A 2696 BC HIP 112325, CPM with HIP 112326 at 20'' (MSC). Hipparcos data are unreliable for this pair. 22474+1749 WSI 93 New pair, nearby high proper motion star NLTT 54852. 22479-5705 B 2059 Unresolved in 2008, last measure in 1991 (0.2'', dm=0.2). 22535-1137 MCA 73 Bad orbit. A is a 3.4-d SB2 (MSC). 22553-4828 B 2506CD Unresolved in 2008, last measure in 1964 (0.1'', dm=0.2). AB = I 22 at 93'' is physical. 22553-4828 I 22 AB The pair CD at 93'' is observed and found unresolved. 22583-0224 CHR 116 Unresolved in 2008, last measure in 1997 (0.3'', dm unknown). 22586+0921 STT 536 AB Companions C,D are optical, A is a suspected eclipsing system, but has constant radial velocity (MSC). 23046-2611 B 587 Unresolved in 2008, last measure in 1931 (0.1'', dm=0.5). 23052-0742 A 417 AB Companion C = HIP 114006 at 255'' is optical (MSC). 23099-2227 RST 3320 Bad orbit. 23114-4259 B 594 Unresolved in 2008, the orbit by Nrr1983 predicts 0.08'' separation, dm=0.4. 23126+0241 A 2298 AB Companion C at 50'' is optical, A is 110-d SB1, with potentially detectable {~}2mas astrometric effect (MSC). 23159-0905 BU 1220 BC Companion A at 49'' is physical (MSC). 23171-1349 BU 182 AB Companion E is physical, C,D, are optical (MSC). Ambiguous orbital solution, corrections are needed. 23175+1652 HLD 171A-BC Resolved triple with HU 497 BC (0.22''). MSC. 23176-0131 BU 79 AB Companion C at 16'', status unknown. 23191-1328 MCA 74 Aa,Ab Companion B at 12'' is physical (MSC). 23208-5018 RST 5560 AB Companion C = HIP 115269 at 17'' is physical, A is suspected SB. Estimated period of AB is longer than 200yr (MSC). 23210+1715 WSI 11 These measures confirm the new pair first reported in Mason et al. (2001b). 23257-4254 I 144 A is a 3.8-d eclipsing binary DP Gru. Estimated period of AB is 1000yr (MSC). 23299-2035 HU 599 AB Companion C at 20'' is physical, estimated period of AB is 240yr (MSC). 23315-2857 B 602 Unresolved in 2008, last measure in 1932 (0.2'', dm=0.3). 23357-2729 SEE 492 Nearby G-dwarf, unresolved. 23363-0707 BU 721 AB Companion C at 22'', status unknown. 23388-2816 B 608 Unresolved in 2008, last measure in 1929 (0.1'', dm=0.5). 23444-7029 WSI 94 New pair, nearby high proper motion star NLTT 57815. 23452+0814 WSI 95 Aa,Ab New pair, previously unobserved G-dwarf. This is the A component of STF 3035 (28'', CPM). 23474-7118 FIN 375 Aa,Ab Bad orbit. Companion B at 8'' is optical? 23537-4926 I 1476 Unresolved in 2008, last measure in 1932 (0.2'', dm=0.1). 23586-1408 RST 4136 AB Bad orbit? Companion C at 12'' is likely optical.