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Inside M27

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: 5-31-14 Palomar Mountain, CA.
Exposure: HaOlll, 105,105 Ha=R, Olll=B, 7 ea. all 15min. (bin 1x1) Ha and Olll combined for green layer.
Optics: Telescope Engineering Company APO180FL @ f/5.23 using an Astro-Physics TCC160 F/L 940mm
Mount: Astro-Physics 1200 GTO / ATS 10x36 Pier.
Camera: FLI-ML6303E @-20c / CFW2-7 / FLI-Atlas focuser / Guided by SBIG ST-I / w OAG.
Filters: Astrodon 3nm Ha, Olll
Software: MaxImDL 6.05, Photoshop CS5, Topaz Labs.

Notes: Sky conditions: Average seeing, calm winds, Temp 65°
Image Field of view is 21.5 x 20 arcmin.

This particular view has been stretched to show what appears to be a boiling region still expanding. This is not visible in a typical RGB image.

The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, 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.