NGC 2392 - the Eskimo nebula - 100408

This is a small planetary nebula in Gemini, sometimes called the Clown nebula. Not as good as the CFHT one, at least I think it was theirs, you know the one, but not bad for 45x60sec unguided frames on a hazy night. It was taken using a Vixen VMC260L with an Antares .5 focal reducer. This reduces the focal length to 1500mm. The camera was an SX M25C. Stacked and pre-processed in AstroArt4 and finalised in Photoshop CS2.
There aren't many objects up there with green in them but some planetaries are so endowed, due to the oxygen in their gas clouds caused to fluoresce by the ultraviolet light from the white dwarf in the middle

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