This image was taken on Dec. 25 in Tucson and consists of a stack of 30 4-minute exposures. The Crab Nebula is a supernova remnant and is located in the constellation Taurus and is 6,200 ly from Earth. It was first observed by Chinese astronomers in 1054 A.D. I posted an image of M1 in an earlier post - Dec. 2090 - one of the first images I took but didn't have enough exposure time to reveal its detail.
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