The
Crab Nebula (catalogue designations
M1,
NGC 1952,
Taurus A) is a
supernova remnant and
pulsar wind nebula in the
constellation of
Taurus. The common name comes from a drawing that somewhat resembled a crab with arms produced by
William Parsons, 3rd Earl of Rosse, in 1842 or 1843 using a 36-inch (91 cm)
telescope.
[6] The
nebula was discovered by English astronomer
John Bevis in 1731. It corresponds with
a bright supernova recorded by
Chinese astronomers in 1054 as a
guest star. The nebula was the first astronomical object identified that corresponds with a historically-observed supernova explosion.
At a distance of approximately 6500 Light Years from Earth, It has a diameter of 11 ly, and is expanding at a rate of about 1,500 kilometres per second \ 930 mi/s, or 0.5% of the
speed of light.
Taken With:
Celestron EdgeHD 8" SCT with ASI294mm-pro Camera
Optolong RGBSHO Filters
Celestron Off Axis Guider (OAG) with ASI174mm Camera
Skywatcher EQ6r-Pro Mount
ASIAir Pro Controller
Processed in Pixinsight and Photoshop
20 x 300sec Red Filter
20 x 300sec Green Filter
20 x 300sec Blue Filter
20 x 300sec Sii Filter
17 x 300sec Ha Filter
17 x 300sec Oiii Filter
Total Integration Time: 7 hours 30 minutes
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