| B Tyson "J" |
1665.00 |
4357.00 |
WIYN 3.5-meter Telescope |
Hydra |
B Tyson "J" |
|
SIZE: 4x4-3.65mm.
|
| B Tyson "J" |
1665.00 |
4357.00 |
WIYN 3.5-meter Telescope |
Hydra |
B Tyson "J" |
|
SIZE: 4x4-3.65mm.
|
| B Tyson "J" 4357/1665 |
1665.00 |
4357.00 |
SMARTS Consortium: 0.9-meter Telescope |
BLANK |
B Tyson "J" 4357/1665 |
|
Size: 4x4 Thick: 3.65
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| Barr H Band Filter |
|
|
Nicholas U. Mayall 4-meter Telescope |
Flamingos |
Barr H Band Filter |
Barr H Band Filter |
Cuton: 1.495 - Cutoff: 1.776
|
| Barr J Band Filter |
|
|
Nicholas U. Mayall 4-meter Telescope |
Flamingos |
Barr J Band Filter |
Barr J Band Filter |
Cuton: 1.170 - Cutoff: 1.326
|
| Barr Ks Band Filter |
|
|
Nicholas U. Mayall 4-meter Telescope |
Flamingos |
Barr Ks Band Filter |
Barr Ks Band Filter |
Cuton: 1.990 - Cutoff: 2.305
|
| Bessell B |
1269.00 |
4326.00 |
SOAR Telescope |
Goodman, SOI |
Bessell B |
Bessell B |
4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
|
| Bessell I |
3914.00 |
8665.00 |
SOAR Telescope |
Goodman, SOI |
Bessell I |
Bessell I |
4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
|
| Bessell R |
1922.00 |
6289.00 |
SOAR Telescope |
Goodman, SOI |
Bessell R |
Bessell R |
4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
|
| Bessell System k p |
1175.00 |
5470.00 |
KPNO 2.1-meter Telescope |
KPNO 4-Inch Filters |
Bessell System k p |
Bessell System k p |
|
| Bessell U |
784.00 |
3624.00 |
SOAR Telescope |
Goodman, SOI |
Bessell U |
Bessell U |
4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
|
| Bessell V |
1073.00 |
5332.00 |
SOAR Telescope |
Goodman, SOI |
Bessell V |
Bessell V |
4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
|
| BG-1 |
1411.60 |
4095.26 |
KPNO 2.1-meter Telescope |
GoldCam |
BG-1 |
BG-1 |
Beware of red leak. Bandpass Filter.
|
| BG-12 |
1411.60 |
4095.26 |
KPNO 2.1-meter Telescope |
GoldCam |
BG-12 |
BG-12 |
Beware of red leak. Bandpass Filter.
|
| BG-38 |
2793.59 |
4879.23 |
Nicholas U. Mayall 4-meter Telescope |
RC Spectrograph |
BG-38 |
BG-38 |
Bandpass Filter.
|
| BG-38-1 |
2657.20 |
4896.52 |
KPNO 2.1-meter Telescope |
GoldCam |
BG-38-1 |
BG-38-1 |
Beware of red leak. Bandpass Filter.
|
| BG-38-1 |
2657.20 |
4896.52 |
KPNO 2.1-meter Telescope |
GoldCam |
BG-38-1 |
BG-38-1 |
Beware of red leak. Bandpass Filter.
|
| BG-38-2 |
2657.20 |
4896.52 |
KPNO 2.1-meter Telescope |
GoldCam |
BG-38-2 |
BG-38-2 |
Beware of red leak. Bandpass Filter.
|
| BG-39 |
2390.00 |
4679.00 |
KPNO 2.1-meter Telescope |
KPNO 4-Inch Filters |
BG-39 |
BG-39 |
|
| BG-39 |
2359.51 |
4773.35 |
KPNO 2.1-meter Telescope |
GoldCam |
BG-39 |
BG-39 |
Beware of red leak. Bandpass Filter.
|
| BG-39 |
2424.35 |
4736.60 |
Nicholas U. Mayall 4-meter Telescope |
RC Spectrograph |
BG-39 |
BG-39 |
Bandpass Filter.
|
| BG12 |
1015.00 |
4299.00 |
KPNO 2.1-meter Telescope |
KPNO 4-Inch Filters |
BG12 |
BG12 |
1mm + GG385 2mm
|
| BG23 |
|
|
BLANK |
Hydra, Hydra Schott Glass |
BG23 |
|
Schott Glass Filters. Purpose: Bandpass ~330-620nm Thickness: 2mm
|
| BG38 |
2950.00 |
5010.00 |
Nicholas U. Mayall 4-meter Telescope |
KOSMOS |
BG38 |
BG38 |
Bandpass filter. For engineering purposes, not available to users.
|
| BG39 |
|
|
BLANK |
Hydra, Hydra Schott Glass |
BG39 |
|
Schott Glass Filters. Purpose: Bandpass ~350-580nm Thickness: 2mm
|
| Bj Tyson c6024 *** Not Available |
1650.00 |
4350.00 |
Nicholas U. Mayall 4-meter Telescope |
Mosaic |
Bj Tyson c6024 *** Not Available |
Bj Tyson c6024 *** Not Available |
Note: The central wavelength of CTIO Mosaic narrow band filters (actually all filters, but is very significant for narrow band filters) is shifted ~15A to the BLUE in the f/2.87 beam of the Blanco 4m + PFADC corrector as compared to the transmission measured in parallel light. The central wavelength quoted below is nominally for when the filter is used at PF, with the ~15A shift included. Furthermore, the filter transmission curve presented below shows the simulated filter transmission curve for the Blanco 4m + PFADC f/2.87 beam.
|
| Br gamma |
|
21648.00 |
Víctor M. Blanco 4-meter Telescope |
ISPI |
|
|
ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,1592 - 2,1738
|
| Br γ |
215.00 |
2162.00 |
WIYN 3.5-meter Telescope |
WHIRC |
Br γ |
|
|
| Br γ 45 |
237.00 |
2188.00 |
WIYN 3.5-meter Telescope |
WHIRC |
Br γ 45 |
|
|
| BRA |
628.00 |
40520.00 |
Gemini North |
NIRI |
BRA |
BRA |
needs to be updated
|
| BRACONT |
617.00 |
39900.00 |
Gemini North |
NIRI |
BRACONT |
BRACONT |
needs to be updated
|
| BrG_G1122 |
308.00 |
21660.00 |
Gemini South |
GSAOI |
BrG_G1122 |
BrG_G1122 |
|
| BRGAMMA |
338.00 |
21686.00 |
Gemini North |
NIRI |
BRGAMMA |
BRGAMMA |
|
| Bry |
210.00 |
21620.00 |
SOAR Telescope |
SPARTAN IR |
|
|
Width [km/s]: 2870. Note that SPARTAN filters are permanently mounted in the instrument, and therefore are always available and need not be specified in Instrument Setup forms.
|
| BTFI 5021/17 |
16.50 |
5020.90 |
SOAR Telescope |
SAM, SAM-FP |
|
|
|
| BTFI 6569 / 20 |
18.60 |
6569.20 |
SOAR Telescope |
SAM, SAM-FP |
|
|
|
| BTFI 6579 / 20 |
19.90 |
6578.80 |
SOAR Telescope |
SAM, SAM-FP |
|
|
|
| BTFI 6600 / 20 |
19.30 |
6600.50 |
SOAR Telescope |
SAM, SAM-FP |
|
|
|
| BTFI 6745 / 38 |
38.50 |
6745.00 |
SOAR Telescope |
SAM, SAM-FP |
|
|
|
| BTFI_5021/17 Narrow |
16.50 |
5030.90 |
SOAR Telescope |
SAM, SAMI |
|
|
|
| BTFI_6569/20 BTFI |
18.60 |
6569.20 |
SOAR Telescope |
SAM, SAMI |
|
|
|
| BTFI_6579/20 BTFI |
19.90 |
6578.80 |
SOAR Telescope |
SAM, SAMI |
|
|
|
| BTFI_6600/20 BTFI |
19.30 |
6600.50 |
SOAR Telescope |
SAM, SAMI |
|
|
|
| BTFI_6745/38 BTFI |
38.50 |
6745.00 |
SOAR Telescope |
SAM, SAMI |
|
|
|
| Bw NDWFS k1025 |
1275.21 |
4110.78 |
Nicholas U. Mayall 4-meter Telescope |
Mosaic |
Bw NDWFS k1025 |
Bw NDWFS k1025 |
Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. See the plot at the bottom of the page. Note: This filter was called the NDWFS UB filter in 1997-1998.
|
| Bw NDWFS k1025 |
|
|
Nicholas U. Mayall 4-meter Telescope |
Mosaic |
Bw NDWFS k1025 |
Bw NDWFS k1025 |
|
| Bw NDWFS k1025 |
|
|
Nicholas U. Mayall 4-meter Telescope |
Mosaic |
Bw NDWFS k1025 |
Bw NDWFS k1025 |
Below is a plot of the transmission of this filter when used at telescopes with differing focal ratios and central obscurations; the KPNO 4m (f/3.1) and the CTIO 4m (f/2.9). At the KPNO 4m f/3.1 the properties of this filter are: CWL=4091A, FWHM=1250A, PEAK TRANSMISSION=91.7%.
|
| C IV |
|
2.00 |
Víctor M. Blanco 4-meter Telescope |
ISPI |
|
|
ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,0753 - 2,0892
|
| C Wash |
1042.00 |
3996.00 |
WIYN 3.5-meter Telescope |
Hydra |
|
|
SIZE: 3x3-8.11mm. |
| C Wash |
1030.00 |
4000.00 |
WIYN 3.5-meter Telescope |
Hydra |
C Wash |
|
SIZE: 4x4-8.45mm.
|