M27 - The Dumbbell Nebula

In this image, taken by +Nicolas Kizilian using a Meade 8" Schmidt-Cassegrain Telescope and a Moravian G2-8300 camera, you can see the Dumbbell Nebula (M27, NGC 6853). It is a planetary nebula, located in the constellation of Vulpecula (The Little Fox, https://goo.gl/uwv44t), about 1,360 light-years away from Earth.

M 27 has a diameter of about 3 light-years. The nebula is driven by the strong radiation of its central star, an unusually big white dwarf (https://goo.gl/AGjeCW). The nebula is believed to be about 10,000 years old.

The Dumbbell Nebula was discovered on July 12th, 1764, by the French astronomer Charles Messier (https://goo.gl/4h7fNq).

Take a look here for a Very Large Telescope (VLT) image of M27:
http://www.eso.org/public/images/eso9846a/

What is a planetary nebula?

A planetary nebula is an emission nebula (https://goo.gl/QtI28t), it is basically a shell of glowing ionized gas ejected from old red giant stars and driven by the strong ultraviolet radiation of the resulting planetary nebula nucleus (PNN) that is cooling down and turning into a white dwarf. Planetary nebulae are short-lived objects, lasting a few tens of thousands of years until the PNN/white dwarf (https://goo.gl/HGYVfx) cooled down enough and is no longer putting out enough ultraviolet radiation so the gas no longer gets ionized. More here:
https://en.wikipedia.org/wiki/Planetary_nebula
https://en.wikipedia.org/wiki/Red_giant

Videos explaining planetary nebulae:
https://youtu.be/pQ4-m1vtTmE
https://youtu.be/4AT9ct-2-Rc

Take a look here for a collage of 100 Planetary Nebulae:
https://plus.google.com/u/0/+PierreMarkuse/posts/4TzoRTntEG1

Read more about the different types of nebulae here in this article I wrote for PhotographingSpace:
https://photographingspace.com/what-are-nebulae/

And in case you want to know more about colors in astrophotography, take a look here:
https://photographingspace.com/ap-color/

Image credit: M27, la Nébuleuse de l’Haltère +Nicolas Kizilian https://goo.gl/XByRWx Used with permission

If you like this image, you can find Nicolas here on G+ (+Nicolas Kizilian), on Twitter (https://twitter.com/NKizilian) and on Facebook (https://www.facebook.com/NicolasKizilian) and see more of his work here on his website: http://www.astropixels.fr

Thank you for your interest in this Astronomy/Astrophysics collection. Maybe add me on Google+ (+Pierre Markuse) and Twitter
(https://twitter.com/Pierre_Markuse) or have a look at the Space/Space Technology collection here: https://goo.gl/5KP0wx

#science #astronomy #astrophotograpy #emissionnebula #space #photography #planetarynebula #m27 #messier27 #ngc6853 #dumbbellnebula
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