1. Filters
  2. Filters

Filters

Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
H-alpha+4nm 60.00 6618.00 WIYN 0.9-meter Telescope S2KB H-alpha+4nm Bandpass.
H-alpha+8nm 60.00 6658.00 WIYN 0.9-meter Telescope S2KB H-alpha+8nm H-alpha+8nm 10-2007
H-alpha+8nm 60.00 6658.00 WIYN 0.9-meter Telescope S2KB H-alpha+8nm Bandpass.
kp522 62.00 3753.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter
Hale-Bopp Blue Continuum 62.00 4449.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
H-alpha+12nm 63.00 6700.00 WIYN 0.9-meter Telescope S2KB H-alpha+12nm Bandpass.
HBeta 63.00 4871.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters HBeta HBeta Replaces 804
H-alpha+12nm 63.00 6700.00 WIYN 0.9-meter Telescope S2KB H-alpha+12nm H-alpha+12nm 10-2007
Halpha 64.00 6559.00 WIYN 3.5-meter Telescope Hydra Halpha SIZE: 3x3-5.61mm.
Halpha 64.00 6559.00 WIYN 3.5-meter Telescope Hydra Halpha SIZE: 3x3-5.61mm.
Halpha 656375-3 64.00 6559.00 SMARTS Consortium: 0.9-meter Telescope BLANK Halpha 656375-3 Size: 3x3 Thick: 5.61
660075-4 67.00 6600.00 SMARTS Consortium: 0.9-meter Telescope BLANK 660075-4 Size: 4x4 Thick: 5.57
H-alpha_2 67.00 6573.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters H-alpha_2 H-alpha_2 set2
N/A 67.00 6600.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 4x4-5.57mm.
H-alpha +6nm 67.00 6620.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters H-alpha +6nm H-alpha +6nm Andover
kp809 67.00 6488.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters kp809 kp809 Minor edge separation
N/A 67.00 6600.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 4x4-5.57mm.
Halpha 656375-4 68.00 6567.00 SMARTS Consortium: 0.9-meter Telescope BLANK Halpha 656375-4 Size: 4x4 Thick: 5.54
Halpha 68.00 6567.00 WIYN 3.5-meter Telescope Hydra Halpha SIZE: 4x4-5.54mm.
H-alpha9_2 68.00 6653.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters H-alpha9_2 H-alpha9_2 =+9nm set2
Halpha 68.00 6567.00 WIYN 3.5-meter Telescope Hydra Halpha SIZE: 4x4-5.54mm.
823 823_v2 k1047 68.02 8238.79 Nicholas U. Mayall 4-meter Telescope Mosaic 823 823_v2 k1047 823 823_v2 k1047 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 is a replacement of the old Rhoads 823 filter (k1027) was purchased. See below for a comparison of the two filters.
KP1391 68.39 6608.47 Nicholas U. Mayall 4-meter Telescope KOSMOS KP1391 KP1391 KOSMOS Approved KPNO 4in. Filter.
815 815_v2 k1046 68.53 8152.64 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v2 k1046 815 815_v2 k1046 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 is a replacement for the old Rhoads 815 filter (k1026)
kp1215 69.00 3536.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1215 check plot--looks clear!
kp1221 69.00 4089.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1221
kp1215 69.00 3536.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1215 check plot--looks clear!
kp1221 69.00 4089.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1221
660075-3 69.00 6598.00 SMARTS Consortium: 0.9-meter Telescope BLANK 660075-3 Size: 3x3 Thick: 5.57
N/A 69.00 6598.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 3x3-5.57mm.
HaC_G0311 69.00 6620.00 Gemini North GMOS-N HaC_G0311 HaC_G0311
N/A 69.00 6598.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 3x3-5.57mm.
kp6649a 70.00 6650.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter halpha set combined
kp279 70.00 6308.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp279
kp279 70.00 6308.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp279
HaC_G0337 70.00 6620.00 Gemini South GMOS-S HaC_G0337 HaC_G0337
kp1409 70.00 4260.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter DDO SET
815 815_v1 k1026 70.36 8152.10 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v1 k1026 815 815_v1 k1026 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:In December 2003 a replacement for this filter (k1046) was purchased. See below for a comparison between the two filters.
823 823_v1 k1027 70.61 8232.04 Nicholas U. Mayall 4-meter Telescope Mosaic 823 823_v1 k1027 823 823_v1 k1027 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: In December 2003 a replacement for this filter (k1047) was purchased. See below for a comparison of the two filters.
kp6606a 71.00 6611.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter halpha set combined
H-alpha14_2 71.00 6709.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters H-alpha14_2 H-alpha14_2 =+14nm set2
Ha_G0336 71.00 6560.00 Gemini South GMOS-S Ha_G0336 Ha_G0336
kp7146b 71.00 7154.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter halpha set combined
kp7193b 71.00 7203.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter halpha set combined
H-alpha 72.00 6587.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters H-alpha H-alpha Andover
Ha_G0310 72.00 6560.00 Gemini North GMOS-N Ha_G0310 Ha_G0310
HeII_G0320 72.00 4680.00 Gemini North GMOS-N HeII_G0320 HeII_G0320
kp6477a 72.00 6483.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter halpha set combined
KP1390 72.39 6577.44 Nicholas U. Mayall 4-meter Telescope KOSMOS KP1390 KP1390 KOSMOS Approved KPNO 4in. Filter.
kp7288b 73.00 7290.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter halpha set combined
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