Detailed Crab Nebula

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Image © 2022 Jeremy Likness. All rights reserved.
Annotated Image (fullsize version)
Image © 2022 Jeremy Likness. All rights reserved.
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Image © 2022 Jeremy Likness. All rights reserved.
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Image © 2022 Jeremy Likness. All rights reserved.
This is a detailed rendering of the crab nebula using a combination of broadband and SHO filters.

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Telescope:   Celestron EdgeHD 9.25
Length:   1645mm
Aperture:   235mm
F-stop:   f/7.0
Sessions:   3
Captured:   2022-02-28 to 2022-10-01
Lights:   43
Exposure:   300
Total exposure:   3 h
Ra:   5h 34m 32.1s
Dec:   +22° 01' 49.852
Size:   30.971 x 22.671 arcmin
Radius:   0.32 deg
Scale:   0.316 arcsec/pixel

Related images:

This was a focused capture using 5-minute exposures over two nights with the Optolong L-eXtreme filter. The Crab Nebula was mistaken for a comet by astronomer Charles Messier in the late 1600s. Frustrated, he started a catalog of 'things to avoid' and the Crab was awarded Messier 1 or M1 for short. I wonder what his reaction would have been had he used an EdgeHD instead?
To start the new year, I imaged the first item in the Messier catalog on the first day of the year. Coincidentally, M1 was the first deep space object and nebula I photographed. This is a stack of several nights of 5-minute exposures that sum to just over seven hours of integration time.
It started as a supernova recorded by Chinese astronomers in 1054 AD. M1, the Crab Nebula, is the expanding remnant of that millenia old explosion.
My first ever astrograph taken with the Celestron EdgeHD 9.25 SCT.
The first nebula I photographed is also the first item in the Messier Catalog. M1, also referred to as the Crab Nebula, is the remnant of a supernova estimated to have occurred less than 10,000 years ago, with the light taking around 6500 yeas to reach us. At the center sits a spinning neutron star. I decided to revisit M1 as my project for the week. This is the result of 6 hours of exposure over three nights. Processed a second time with BlurXTerminator.

Objects in frame:

M1 NGC1952
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