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NGC 1499 - California Nebula

 

NGC 1499

 

The Califonia Nebula (NGC 1499) is a large emission nebula in Perseus, situated next to the bright 3rd magnitude star ξ Persei (situated below the nebula in the image). It is huge in size, spanning over 145 x 40 arcminutes in the sky, and was named for its slight resemblance in shape to the US West Coast state. The main emission line of the nebula is H alpha, that is hydrogen emitting at the wavelength 656.3 nm, at the red end of the visible light spectrum. Because of its low surface brightness, the California Nebula is primarily a photographic object, although it can be glimpsed visually in a rich-field telescope using a Hβ filter.

Perseus, standard lens photograph.


Exposure Data


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© 2010 Walter Koprolin