Henize 70 Superbubble

Henize 70 (also known as N70 and DEM301) is a luminous Superbubble of interstellar gas about 300 light-years in diameter, blown by winds from hot, massive stars and supernova explosions.

Camera	STL-11000M	Scope	AT12 IN
Mount	Paramount ME	Guiding	20 Sec self guided bin 2x2
Exposure	20 min x 4 Ha	Location	Donvale
Date	2011-11-23