A Green Cross (2012)
Update: More information on this object clearly explained here!
This interestingly shaped thing is a kind of planetary nebula. From my understanding (note: I am not an astronomer!) its appearance is quite green because it is poor in hydrogen. If you want to know more, some papers about it are here.
Object name: PK208+33D1
Coordinates: 08:46:53.370 +17:52:44.40
Hubble data is public domain. I do, however, request that you credit me for the processing of the image if you use it.
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