NGC2359
The Thor's Helmet is a emission nebula in the constellation Canis Major. The nebula is approximately 15,000 light-years away and 30 light years in size. 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. It is similar in nature to the Bubble Nebula, interactions with a nearby large molecular cloud are thought to have contributed to the more complex shape and curved bow-shock structure of Thor's Helmet.
Equipment: Exposure details: Location:
Telescope: FSQ106N
Mount: EQ6
Camera: SBIG STL-11000M
Filters: Astrodon Ha
Ha: 3x20min
Rachia, Veroia, Greece
N 40o29'00.0" - E 22o12'55.0"
Elevation:550m
5 February 2009
Image details:
Acquisition: MaxImDL Reduction/stacking: MaxImDL Final creation: Photoshop CS3
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