This nonstellar object has been used to map the Su
This nonstellar object has been used to map the Sun's corona and measure the thickness of the moon Titan. The center of this object is home to PSR B0531+21, a namesake pulsar that rotates thirty times per second and emits synchrotron radiation. Approximately 6500 light-years away, it is located in the constellation Taurus, and is the remnants of a supernova that was first detected in 1054 AD. For 10 points, name this nebula, originally named for its appearance to an animal.
This nonstellar object has been used to map the Sun's corona and measure the thickness of the moon Titan.
{Crab} Nebula [or {M1}; or {Messier} 1; or {NGC} 1952]