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M27 / Dumbbell Nebula 

Classification: Planetary Nebula M27 / NGC6853
Constellation: Vulpecula (Vul)
Object Location: Ra 20h 00m 16s Dec +22° 46’05° (current)
Size & Distance: 6.7x6.7 Apx 1360 light years.

Date & Location: 05-21-2012 Little Blair Valley, CA
Exposure: HaRGB, Ha= 9 @ 15nim. (bin 1x1) RGB= 4 ea. @ 10 min. (bin 2x2)
Optics: Telescope Engineering Company APO160FL @ f/7.2 F/L 1152mm.
Mount: Astro-Physics 900 GTO / ATS 10x36 pier
Camera: SBIG-ST10XME @ -15c / Guided by TV60APO / w SBIG ST-402
Filters: Astrodon 3nm Ha, G2 RGB
Software: MaxImDL 4.56, Photoshop CS5

Notes: Sky conditions: Good seeing, calm wind, Mid 60’s
Image Field of view is 29 x 44 arcmin.

The Dumbbell Nebula (also known as Apple Core Nebula,  M 27, or NGC 6853)
is a planetary nebula in the constellation 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.