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Thor’s Helmet



 

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Thor's Helmet. Click image for full size version.

 


Common Name Thor's Helmet
Formal Name NGC 2359
Date 1/6/2014
Constellation Canis Major
Location BrewSky Observatory, Casa Grande, AZ
Equipment Celestron Edge 11 on Paramount, SBig 8300F Camera/Filter Wheel/St-i guider
Temperature −20°C
Exposures
# Exp (sec) Filter Bin Net Time (hr)
16 600 HAlpha 1x1
15 600 Green 1x1
30 600 OIII 1x1
Total 10 hrs
Processing Calibrated in MaximDL
Processed in PixInsight.
This version uses only HAlpha, Oiii, and Green exposures (no Luminous). I accidentally ran Oiii twice, which is why there are so many Oiii subframes:)
Notes NGC 2359 (also known as Thor's Helmet) is an emission nebula in the constellation Canis Major. The nebula is approximately 15,000 light-years away and 30 light-years in size. The central star is the Wolf-Rayet star HD 56925, 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.
- Wikipedia

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LRGB Version

Common Name Thor's Helmet
Formal Name NGC 2359
Date 1/6/2014
Constellation Canis Major
Location BrewSky Observatory, Casa Grande, AZ
Equipment Celestron Edge 11 on Paramount, SBig 8300F Camera/Filter Wheel/St-i guider
Temperature −20°C
Exposures
# Exp (sec) Filter Bin Net Time (hr)
15 600 Blue 1x1
15 600 Green 1x1
15 600 Red 1x1
24 900 Lum 1x1
Total 13.5 hrs
Processing Calibrated in Maxim, Aligned/Stacked/Processed in PixInsight
Notes

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