NGC7635, The Bubble Nebula

Too big? Try this smaller image: NGC6559 750x557

Imaging Equipment:

• Telescope: Takahashi FS-152 f/8 fluorite refractor at f/8.
• 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 red, green, blue and Hydrogen-Alpha (deep red) dichroic filters

Exposure Information:

• Date: Friday August 17, 2001
• Location: Mt. Pinos, CA
• Elevation: Approx. 8300', OAT +46F
• Exposure time: 4.2 hours
• Composition: (Ha+R)GB (100:50:50:50 minutes)
• All exposures were 10 minutes each.
• North is to the right.

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