Observing Session December 12th, 2010 Messier 1, The Crab Nebula

Here is the next object that I sketched on December 12th, the Crab Nebula or Messier 1. Though not a grab and get your attention object for many the first time they observe it, it is what it represents that is so wonderful! This is a Supernova remnant that exploded in 1054 CE and seen by Arab and Chinese Astronomers of their day. It is 11 ly across and has a neutron star/pulsar near its center that spins at about 30.2 times per second, sending out pulses of radiation in many forms.