A Portion of NGC7000

To see the faint detail in this image, adjust your monitor's brightness and contrast to clearly show all 17 steps in this grayscale chart:

Imaging Equipment:

• Telescope: Celestron C11 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 IR-blocking clear, red, green, blue and narrow-band (3nm) Ha dichroic filters

Exposure Information

• Date: Saturday August 10, 2002
• Location: Mt. Pinos, CA
• Elevation: 8300', OAT +50F
• Composition: Monochromatic Image in the light of Hydrogen Alpha
• 27 subexposures of 10 minutes each. (4.5 hours total exposure time.)
• Plate scale: 1.02 arc-sec/pixel

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