M1, the Crab nebula is the first of the Messier objects and a favorite astrophoto target. It is the reminent of a supernova explosion observed by Chinese astronomers in 1054. This is a monochrome image taken with an H-alpha filter.
Details
20" f/4.1 telescope at the SDG observatory of Garry Sedun in Arizona.
Camera - SBIG ST2000 XM.
Guidescope WO 80mm f/6.8 APO.
Mount - Paramount ME
Exposures -
2016-03-09/10
17 - 5m exposures with Ha filter