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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: 118 arcminutes wide x 77.1 arcminutes high
• Image is half size
• North is top and west is right
  
• Exposure: 24 images x 120 seconds per image (48 minutes total)
• Note: Seven images taken and not used because of clouds
• CCD-TEMP: -27°C
• Astronomik Type IIc Luminance filter
• Guided

Observing Information

• OBS-Location: Oregon Star Party (OSP), OR USA
• TIME-Local of first image = 8:39 PM August 30, 2008
• TIME-Local of last image = 9:48 PM

Imaging Equipment

• CCD camera: QSI 532ws-M1 (9.7mm x 14.9mm)
• Telescope: Tele Vue NP-101is APO refractor (4 inch dia., focal length = 540, f/5.4)
• Focal reducer: Tele Vue NPR-1073 0.8X (focal length = 432, f/4.3, 3.24 arcsec/pix)
• Telescope mount: Orion Telescopes and Binoculars Atlas EQ-G Mount with GoTo Controller
• Tripod: Losmandy G-11 tripod
• Guide camera: Orion Telescopes and Binoculars StarShoot AutoGuider
• Guide scope: 40mm dia., 250mm focal length
• Guiding software: Stark Labs PHD Guiding

Imaging Processing

• Image was processed for M27 details and faint stars.
• AIP4WIN V2.2
• CCDWare CCDStack V1.4
• Diffraction Limited MaxIm DL V5.03
• Adobe Photoshop CS3 10.0.1

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