Image is in mapped colors from the emission of ionized elements, Red=Sulfur, Green=Hydrogen and Blue=Oxygen.
I have made few 3D-studies out of this image. Here is a one sample as a movie format, please, copy and paste the link:
http://astroanarchy.blogspot.fi/2013/02/3d-study-of-messier-27-dumbbell-nebula.htmlThe Dumbbell Nebula (also known as a Messier 27, M 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at a distance of about 1360 light years. It has a large angular diameter as a planetary nebula, about 8 x 5,6 arc minutes. (Rarely imaged outer halo is not included, it can be seen in my image. With an outer shell, the diameter is over 15'' (more than a size of the half a Moon)
Planetary nebulae are shells of gas shed by stars late in their life cycles after using up all of their nuclear fuel. The star then ejects a gaseous shell, which is illuminated by its extremely hot central star, a core left from the original star. n this image, the central star is clearly visible at very center of the nebula.
M27's central star has a magnitude of 13.5 and is an extremely hot blueish dwarf with a temperature of about 85,000 K. Our own star, the Sun, is expected to undergo the same process in a couple of billion years.
- See more at:
http://www.astrobin.com/55350/#sthash.j7YxD7ha.dpuf
Comments