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QSI 520 -

M27 Dumbbell Nebula

Objects Information
Objects in image from top to bottom

• Constellation: Vulpecula
• Messier 27 Dumbbell Nebula
  • SEDS Messier 27
  • Wikipedia Dumbbell Nebula
  • Astronomy Picture of the Day M27: Not A Comet 2008 June 26
  • Astronomy Picture of the Day M27: Not A Comet 2006 August 3
  • Astronomy Picture of the Day M27: The Dumbbell Nebula 2005 June 3
  • Astronomy Picture of the Day M27: Not A Comet 2004 April 24
  • Astronomy Picture of the Day Dumbbell Nebula Halo 2003 July 25
  • Astronomy Picture of the Day The Dumbbell Nebula in Hydrogen and Oxygen 2003 January 13
  • Astronomy Picture of the Day M27: The Dumbbell Nebula 2001 March 6
  • Astronomy Picture of the Day M27: Not A Comet October 23, 1999
  • Astronomy Picture of the Day M27: The Dumbbell Nebula July 29, 1995

Image Information

• Field of view: 115.7 arcminutes wide x 86.8 arcminutes high at 4.34 arcsec/pix
• Image reduced from 1600x1200 to 1200x900 for website
• North is top and west is left
• Exposure: 10 images x 480 seconds per image (80 minutes total)
• CCD-TEMP: -28°C
• Astronomik Type IIc Luminance filter
• Guided

Observing Information

• OBS-Location: Oregon Star Party (OSP), OR USA
• DATE-Local = August 30, 2008
• 13 images taken, two not used because of clouds and one not used because of guiding errors
• TIME-Local of first image = 9:13 PM
• TIME-Local of last image = 10:51 PM

Imaging Equipment

• QSI 520 CCD Camera on Pentax 75mm SDHF APO Refractor

Imaging Processing

• AIP4WIN V2.2
• Diffraction Limited MaxIm DL V5.02
• Adobe Photoshop CS3 10.0.1
• Noel Carboni Photoshop Astronomy Tools V1.5

Monitor Test Pattern

The following test pattern is to help you adjust your monitor to best view the CCD astro images. The test pattern is used for adjusting monitor brightness, and contrast. Adjust monitor brightness and contrast to see all 16 gray scale levels. The most important adjustment when viewing astro images is to see the differences in all of the black bands.

© 1998-2008 David Haworth