NGC7635, The Bubble Nebula
Too big? Try this
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 9
m, 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
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.