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Dumbbell Nebula(M27)
Katherine Wever

Dumbbell Nebula

The Dumbbell Nebula, M27, is a large planetary nebula located in the Vulpecula constellation. It was formed by a central star that illuminates its expanding shell of gas, expelled by the star after it had used up all of its nuclear fuel. The central white dwarf in M27 is the remains of the core left from the original star and it is extremely hot. The Dumbbell Nebula was first discovered by Charles Messier in 1764 and it is believed to be about 1200 light-years from Earth, at this distance the sun would appear 100 times fainter then the nebula. The Dumbbell is approximately half a lightyear in diameter.

In the image above it is possible to see the white dwarf at the center of the nebula along with a dense cloud of gasses in the center creating a bright center. With a denser cloud of gasses in the center and thinner cloud along the edges we are able to see the elliptical shape with elongated somewhat mirrored structures on both sides. The bright red, green, and blue colors present in the nebula are produced by hydrogen and oxygen.

References:

http://www.constellation-guide.com/dumbbell-nebula-messier-27/

http://www.cosmotography.com/images/planetary_nebula_formation.html

http://www.messier-objects.com/messier-27-dumbbell-nebula/

Wikipedia, "Dumbbell Nebula"

Right Ascension (J2000) 19:59:36
Declination (J2000) +22:43:18
Filters used B (Blue), I (Infrared), R (Red), V (Green)
Exposure x number of images for each filter B, V, R, and I (90 x 7)
Image dimension 600x435 pixels; 8x5.6 arcminutes
Date/time observed March 17, 2016, 5:35 UT
Distance 417 pc
Scale 0.12 pc/arcminute

 

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