Jul 272013
 

I am slowly coming to grips with taking and assembling full color imagery. My latest attempt is this planetary nebula located in the constellation Aquila (The Eagle). The magnitude 16.8 blue/white star that shed its atmosphere is visible in the center of the cloud.

(NGC 6781) [L:8x60s; R: 3x60s; G:3x60s; B:3x60s]

(NGC 6781) [L:8x60s; R: 3x60s; G:3x60s; B:3x60s]

Although the nebula appears as a ring, some studies show that shape is due to our viewing angle. The object is actually cylindrical with our line of sight looking down the tube from the end. The nebula lies about 3100 LY from us and at that distance the nebula is about 2 LY in diameter.
 Posted by at 23:29

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