M1 - The Crab Nebula (Kevin Covey)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: Crab nebula · HD245010 · LBN 833 · M 1 · NGC 1952 · Sh2-244

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M1 - The Crab Nebula

Revision title: M1 HSO_RGB

Powered byPixInsight

M1 - The Crab Nebula

Revision title: M1 HSO_RGB

This was the first "Not a Comet" catalogued by Charles Messier. This is one of the brightest super nova remnants in the sky. The star that created it is thought to have exploded in 1054 AD. The nebula is about 6500 light years from Earth and is about 10 light years across. It is expanding at a rate of about 600 miles a second. The nebula contains a pulsar that produces the glow that can be seen in the nebula's center.

I captured this data over 11 nights from January 9, 2022 to January 29, 2022. I captured an additional 3 hours of luminance data that I did not use in the processing. With the advent of the AI tools from Russ Croman and the use of 1x1 binning and drizzle integration, there really wasn't much additional detail to be gained from the luminance data.

I tried to process this to approximate "true color". In addition to the RGB data, including the stars, I mapped the narrowband data as follows:

NB Filter Hue
Ha 351
OIII 200
SII 360

The processing was done with Pixinsight, while the processed data from the various filters was blended together using Photoshop. Next time I might try the new ImageBlend Script for Pixinsight

As always, my thanks to Adam Block and his excellent tutorials for guidance and inspiration. I used a flow similar to Adam's processing of NGC1491.

Original
Final
B

B

Title: M1 HSO_RGB

Description: This is the same data, but processed with the narrow band data mapped to Red = Ha, Green = SII, Teal = OIII instead of closer to their true colors.

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Status	Advanced success
Started	...
Astrometry.net job	9156489
PixInsight job	DOADBA4V9FWFZO43LYJNZYZRLWNT51HY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h34m31s.721
RA (top/left)	05h33m39s.684
RA (top/right)	05h35m16s.112
RA (bottom/right)	05h35m23s.860
RA (bottom/left)	05h33m47s.255

Dec (center)	+22°01′06″.80
Dec (top/left)	+21°54′23″.40
Dec (top/right)	+21°51′53″.40
Dec (bottom/right)	+22°07′48″.17
Dec (bottom/left)	+22°10′18″.15

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M1 - The Crab Nebula

Revision title: M1 HSO_RGB

M1 - The Crab Nebula

Revision title: M1 HSO_RGB

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M1 - The Crab Nebula

Revision title: M1 HSO_RGB

M1 - The Crab Nebula

Revision title: M1 HSO_RGB

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