The Crab Nebula is the first object in the Messier list, recorded by Messier in 1758. However, there are records of it on July 4th, 1054 when it was visible to the naked eye in Italy, Armenia, Iraq, China, Japan and North America. Of course, they could not see the nebulosity in this photo, but it was rather seen as a bright star observable even during the daytime. It is now known as Supernova Remnant which is why it was observable so long ago. This star literally blew up and we are looking at the remnants.
Photo Details
Messier 1
December 24, 2013
Orion 8" Astrograph on VX Mount
Nikon D3100 Camera - ISO 1600
90 sub frames at 30"/frame
Total Exposure Time = 45 minutes
Image Stacking in Deep Sky Tracker
Image Processing in Fitswork
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