N
E
B
U
L
A
E

Return

In the constellation Canis Major, Thor's Helmet is an emission nebula some 15,000 lightyears distant, and about 30 lightyears in size. At the centre of the nebula's bubble is a Wolf-Rayet star, an extremely hot giant star whose intense stellar wind is causing the nebula's gases to billow. The nebula's catalogue reference is NGC 2359.

Next

Thor's Helmet Nebula, NGC 2359
  Close-up of the Thor's Helmet 
bubble