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, and a popular observing target in amateur telescopes.

Imaging telescopes or lenses: Tecnosky Achromatic 152/900 f/5
Imaging cameras: Atik 383L+ mono
Mounts: Losmandy G11
Guiding telescopes or lenses: Tecnosky Achromatic 152/900 f/5
Guiding cameras: Starlight Xpress Lodestar
Software: DeepSkyStacker, Maxim DL, photoshop
Filters: OIII 12nm, Astronomik Ha
Accessories: OAG artigianale Turi Lo Vecchio
Frames:
Astronomik Ha: 33×900″ -15C bin 2×2
OIII 12nm: 31×900″ -15C bin 2×2
Integration: 16.0 hours
Darks: ~21
Flats: ~21
Bias: ~21
Mean FWHM: 3.00

Author: Francesco Tallarico
AstroPhotography of the day by SPONLI 07 May 2014