Supernova Remnant M1 (NGC 1952) in Taurus.

RA 05 : 34.5 (h:m); DEC +22 : 01 (deg:m); Distance 6300 light years;
Visual Brightness 8.4 (mag); Apparent Dimension 6x4 (arc min)

The Crab Nebula is the most famous and conspicuous known supernova remnant, the expanding cloud of gas created in the explosion of a star as supernova which was observed in the year 1054 AD. It shines as a nebula of magnitude 8.4 near the southern "horn" of Taurus, the Bull.

The supernova was noted on July 4, 1054 A.D. by Chinese astronomers as a new or "guest star," and was about four times brighter than Venus, or about mag -6.
According to the records, it was visible in daylight for 23 days, and 653 days to the naked eye in the night sky.
It was probably also recorded by Anasazi Indian artists and also possibly by by Mimbres Indian artists from New Mexico.

Source and more: SEDS


February 2, 2008 18:15 - 19:53 UT.
Imaging: William Optics Zenithstar 80 ED II APO at F/6.8 [focal length 545 mm], ATK16IC camera, Astronomik HaLRGB filters.
Exposures: L [1x1]: 27x120s; Ha [2x2]: 5x240s; RGB [2x2]: 5x60s each; unguided.

November 18, 2007 01:03 - 01:19 UT.
Imaging: William Optics Zenithstar 80 ED II APO with Meade 3.3 Focal Reducer at f/3 [focal length 240 mm], ATK16IC camera, Astronomik LRGB filters.
Exposures: L: 5x60s; RGB: 5x20s each; autoguided.

December 15, 2006 20:36 - 21:16 UT.
Imaged with LX200 10-inch f/10 telescope with 0.33 Focal Reducer operating at f/4.06 [focal length 1015mm] and Baader Infra Red Blocking Filter.
Camera: Vesta Pro SC3a b/w RAW webcam, 16 unguided exposures of 45 seconds.