The Crab Nebula, or M1, is a supernova remnant, first noticed on July 4, 1054 AD, the new “star” was so bright it was visible for 23 days during the daylight, and 653 days to the naked eye at night. The central star is a pulsar, a rapidly rotating neutron star, rotating 30 times per second. It is about 6,000 light years away in the constellation Taurus.
Camera: SBIG ST-10XME
Filters: Astrodon LRGB
Dates: November 26, 2005
Exposure: LRGB: L=15x5min, RGB=6x3min each for 129 minutes total at -20C