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Photographer:

Dave Weixelman

Email:

davew05@comcast.net

Location of Photo:

Nevada City, CA

Date/Time of photo:

January 29, 2009. 11 pm PST

Equipment:

Stellarvue 105 mm f/7. Starlight Express SXV-H9 camera. Losmandy GM8 mount. 12 X 7 minutes Ha, 12 X 7 minutes OIII. Ha and OII combined to produce synthetic green channel.

Description:

This nebula, with its wing-like appendages, is popularly called Thor's Helmet. This nebula is about 30 light-years across. The central bubble is the result of a fast wind from a bright, massive star near the bubble's center. Known as a Wolf-Rayet star, the central star is an extremely hot giant thought to be in a brief, pre-supernova stage of evolution. Cataloged as NGC 2359, the nebula is located about 15,000 lightyears from the sun.

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