M101
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Imaging Equipment:
- Telescope: Celestron C-11 at f/7.15
- Zeiss II German Equatorial Mount
- Santa Barbara Instrument Group ST-8E NABG CCD camera (1530 x 1020 pixels, 9 x 9
mm, monochromatic, 16 bit, 13.8 x 9.2mm array)
- CWF8 color filter wheel with IR-blocking clear, red, green and blue dichroic filters
Exposure Information:
Date: Friday, April 12, 2002
Location: Mt. Pinos, CA
Elevation: 8300', OAT +40F
Composition: LRGB
L:R:G:B = 160:40:40:60 minutes. Total exposure time: 300 minutes
All subexposures were 10 minutes each
Raw FWHM: 4.0 arc seconds
Plate scale: 0.93 arc-sec/pixel
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