Thor's Helmet

 

NGC 2359, Thor's Helmet
 

 

Image Information
Date Imaged

8/13/2006

Location Imaged From

Tierra del Sol , CA

Equipment Telescope: Meade 10" LX200
Mount: Ulti-Wedge
Camera: SBIG ST-7e CCD NABG
Focal Ratio: f/6.3
Exposure Information

L: 20 X 3 minutes binned 1 X 1
RG: 15 X 2 minutes binned 2x2
B: 18 X 2 minutes binned 2x2

NGC 2359, Also known as Thor's Helmet Nebula.

A bright nebula that surrounds, and has been blown off by the Wolf-Rayet star GSC 5407:3417 – the brightest star visible within the nebulosity. Although 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. It measures some 30 light-years across and lies in the constellation Canis Major.