The Horsehead Nebula and IC434

Click here to see a larger image: Horsehead (989x1124 pixels)

Imaging Equipment:

• Telescope: Celestron C11, 11" f/10 Schmidt-Cassegrain at f/6.5
• Zeiss II German Equatorial Mount
• Santa Barbara Instrument Group ST-8E NABG CCD camera (1530 x 1020 pixels, 9 x 9mm, monochromatic, 16 bit, 13.8 x 9.2mm array)
• CWF8 color filter wheel with Ha and IR-blocking red, green and blue dichroic filters

Exposure Information:

• Date: Saturday December 7, 2002
• Location: Mt. Pinos, CA
• Elevation: Approx. 8300', OAT +20F. RH>80%
• CCD operating temperature: -30C
• Composition: (Ha+R)RGB 165:45:45:45 minutes. Total exposure time: 300 minutes
• All subexposures were 15 minutes each, unbinned
• Plate scale: 1.0 arc-sec/pixel

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