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QSI -

NGC7331 with Stephan's Quintet

Objects Information

• Field of view: 101.5 arcminutes wide x 68.4 arcminutes high
• North is right and west is top
  
• Faintest stars in above image are about 15 magnitude
• Faintest galaxies in above image are about 16 magnitude
• NGC7331 large galaxy in center, 10.35 magnitude
• Stephan's Quintet small galaxies upper right
  • Identification of the Stephan's Quintet galaxies
  • NGC 7320 small 13.23 magnitude galaxy part of Stephan's Quintet
  • NGC 7320C small 16.7 magnitude galaxy part of Stephan's Quintet
  • NGC 7319 small 14.11 magnitude galaxy part of Stephan's Quintet
  • NGC 7318 small 14.9 magnitude galaxy part of Stephan's Quintet
  • NGC 7318B small 13.92 magnitude galaxy part of Stephan's Quintet
  • NGC 7317 small 14.57 magnitude galaxy part of Stephan's Quintet
• NGC 7337 small 15.24 magnitude galaxy below NGC7331
• NGC 7340 small 14.68 magnitude galaxy below NGC7337
• NGC 7335 small 14.44 magnitude galaxy below NGC7331
• NGC 7336 small 15 magnitude galaxy below NGC7335 to the left
• CGCG 514-072 small 15.7 magnitude galaxy below Stephan's Quintet
• NGC 7343 small 14.4 magnitude galaxy lower right corner
• NGC 7315 small 13.51 magnitude galaxy upper left corner
• UGC 12121 small 14.75 magnitude galaxy upper left center
• MCG +06-49-068 small 15.09 magnitude galaxy lower center edge
• KAZ 298 small 15.7 magnitude galaxy lower center-right edge
• CGCG 514-079 small 14.79 magnitude galaxy lower center-right
• NGC 7343 small 14.4 magnitude galaxy lower center-right
• MCG +06-49-044 small 15.7 magnitude galaxy upper center-left

Photo Information

• OBS-Location = Camas, WA USA, 16.6 miles East-North-East from the center of Portland, OR
• NGC7331 was 62° from a 99.42% full Moon
• Clouds stopped the imaging session
• 5 x 120 second images with guiding
• DATE-Local = November 23, 2007
• TIME-Local = 6:23 PM to 6:38 PM
• DATE-OBS = '2007-11-24T02:19:26' /YYYY-MM-DDThh:mm:ss observation start, UT
• SET-TEMP = -35.000000000000000 /CCD temperature setpoint in C
• CCD-TEMP = -35.000000000000000 /CCD temperature at start of exposure in C

QSI Imaging Equipment

• QSI 532ws-M1 CCD camera
• Pentax 75mm SDHF APO 3-element design refractor (f/6.7 focal ratio, 500mm focal length) telescope
• The telescope mount is the Orion Telescopes and Binoculars Sirius EQ-G with GoTo Controller.

Imaging Processing

• Diffraction Limited MaxIm DL V4.60

© 1998-2006 David Haworth