NGC7635

"Bubble Nebula"

Contains a Wolf-Rayet star, that blows up a "bubble of gas"

• TYPE:  Emission Nebula
• RA: 23h 20.7'
• DEC:  +61degrees 12'
• SIZE:  15' X 8'
• VISUAL MAGNITUDE: 6.9
• SURFACE BRIGHTNESS: 
• CONSTELLATION:  Cassiopeia
• DISTANCE: 
• DIAMETER: 

• TELESCOPE:  RCOS 10 Carbon R/C, Ritchey-Chretien reflector, on Paramount GT1100 mount.
• REDUCER/CORRECTOR: None - Operating at focal length of 9.0
• CAMERA:  Santa Barbara Instruments, ST-8XME Digital (Thermoelectrically cooled)
• ADAPTIVE OPTICS:  None
• FILTER(S):  Luminence (L)  (Astrodon)
• CCD COOLING TEMPERATURE:  -15 C
• BINNING/RESOLUTION:  1 X 1 (1530 X 1020) L
• EXPOSURE TIME:  L = 3 minute subframes
• NUMBER OF IMAGES:  40
• FILM SPEED:  None
• DATE/TIME:  12-25-2006 / 03:23:00.106 UTC
• LOCATION:  Valley Center, San Diego County, California
• TEMPERATURE:  61 Degrees
• HUMIDITY:  24 Percent

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