The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, M 27, or NGC 6853) is a planetary nebula in theconstellation Vulpecula, at a distance of about 1,360 light years.

This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a popular observing target in amateur telescopes.

Imaging telescopes or lenses: Planewave Instruments CDK 16″
Imaging cameras: Sbig STXL 11002
Mounts: Paramount MX
Software: Photoshop, PixInsight, Maxim DL, Star Tools Startools 1.3
Resolution: 2980×2156
Dates: Oct. 19, 2014
Locations: CAAT
Frames: 40×1200″
Integration: 13.3 hours
Avg. Moon age: 24.99 days
Avg. Moon phase: 21.56%
RA center: 299.915 degrees
DEC center: 22.707 degrees
Pixel scale: 0.638 arcsec/pixel
Orientation: -83.529 degrees
Field radius: 0.326 degrees

Аuthor:Alvinillo

Astrophotography of the day of  SPONLI, 12.11.2014