Images taken from my backyard and from Mt Pinos with my 9.25Edge and cropped. This nebula is on the small size as it is relatively young. There are equally strong Ha, Sii and Oiii emissions resulting in an incredibly pleasing colors in SHO. I'm pleased with the detail even though I did not use a luminance layer. I may try to create a super luminance using Ha and Siii to see if I can achieve more detail. It is best observed in January so that may wait till then. Oh, for the stars I used Pixmath to create a pseudo RGB palette then combined those stars to the SHO image. Now for some interesting M1 factoids:
In 1054, Chinese astronomers took notice of a “guest star” that was, for nearly a month, visible in the daytime sky. The “guest star” they observed was actually a supernova explosion, which gave rise to the Crab Nebula, a six-light-year-wide remnant of the violent event.
The nebula was discovered by English astronomer John Bevis in 1731, and later observed by Charles Messier who mistook it for Halley’s Comet. Messier’s observation of the nebula inspired him to create a catalog of celestial objects that might be mistaken for comets.
the nebula’s beating heart: the rapidly spinning pulsar at its core (the ultra-dense core of the exploded star). Electrons whirling at nearly the speed of light around the star’s magnetic field lines produce the eerie blue light in the interior of the nebula. The neutron star, like a lighthouse, ejects twin beams of radiation that make it appear to pulse 30 times per second as it rotates. check out this time-lapse movie of M, created from a series of 10 Hubble exposures. It reveals wave-like rings expanding outward from the nebula’s pulsar (the bright object just below the center of the image)
HERE.
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