M1 Crab Nebula
| Description |
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. The nebula was discovered by English astronomer John Bevis in 1731. It corresponds with a bright supernova observed in 1054 C.E. by Mayan, Japanese, and Arab stargazers; this supernova was also recorded by Chinese astronomers as a guest star. The nebula was the first astronomical object identified that corresponds with a historically observed supernova explosion. |
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| Data/Processing Attribution |
This is my data and processing. |
| Distances/Size |
Distance to the object: 6,500 light-years. Diameter of the nebula is about 11 light-years. |
| Equipment |
Mount-PlaneWave L-350; Scope-PlaneWave CDK14″, 356 mm aperture, 2563 mm focal length; Camera-Moravian C3-61000, 0.30 arcsec/pixel. |
| Observatory |
The image was captured at the Prairie Skies Astro remote observatory. |
| Exposure |
Total exposure was 16 hours and 35 minutes 1 second: Ha-34X300 2 hours 50 minutes O3-29X300 2 hours 25 minutes S2-29X300 2 hours 25 minutes R-121X90 3 hours 01 minutes 30 seconds G-118X90= 2 hours 57 minutes B-119X89= 2 hours 56 minutes 31 seconds
Total—16 hours, 35 minutes 1 seconds Processing is done in PixInsight, Photoshop, and Lightroom Classic |