NGC 2359, Thor's Helmet an emission nebula in Canis Major
An extremely hot Wolf-Rayet star excites this faint wind-blown nebula in Canis Major.
This 20 x 20 arc minute image was created by combining 30 minutes of Hydrogen Alpha (red) with the the same time in SII (green) and OIII (blue). All images taken with a Takahashi Epsilon 250mm F/3.8 astrograph and an ST-8XE CCD camera.
There is strong Hydrogen Alpha and OIII emission as can be seen in the animation.
In collaboration with the Remote Astronomical Society Observatory
Martin Nicholson - Daventry, United Kingdom.
This page was last updated on October 5th 2008.