Messier 1 - the crab nebula - 5 weeks later (Simon)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: Crab nebula · HD244681 · HD244682 · HD244817 · HD244818 · HD244852 · HD244863 · HD245010 · HD245197 · HD245229 · HD245325 · HD245341 · HD36836 · HD37013 · LBN 833 · M 1 · NGC 1952 · Sh2-244

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Messier 1 - the crab nebula - 5 weeks later

Revision title: Messier 1 - the crab nebula - 5 weeks later

Powered byPixInsight

Messier 1 - the crab nebula - 5 weeks later

Revision title: Messier 1 - the crab nebula - 5 weeks later

It has taken me 5 weeks to produce this image, initially 30 Has at 3 minutes exposure time each, and then later 40 OIIIs at the same exposure time. The cloud came in the first time round and then heavy fog the second time. The amount of times I have covered up the gear with a massive tarpaulin because of rain, has been more than I wish to count! I am not moaning... really! It has been so hard lately to get anything.

The only other clear night I had was with a 92% moon and I tried to image the flaming star nebula - I am yet to see if I can get anything out of the data. So, at the moment, this is my only image since CTB1. As of tonight, the rain continues...

The total exposure time is thus 3.5 hours for this object, but I want to wish you all a happy New Year - take care...

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B

Title: Messier 1 - the crab nebula - 5 weeks later

Description: I should have waited before posting the first version of this. I have never liked it when the main tendril-filamentary parts of the nebula seem to stand out too much, relative to the rest of the nebula, on the eye. It seems a little unnatural to me. So I have reduced these by a very slight amount, and reduced the stars a fraction too. Cheers!

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Status	Advanced success
Started	...
Astrometry.net job	5349084
PixInsight job	NYA6FHV47A9ZVF3CYQUX0NY3UTZLRG3D
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h34m42s.85
RA (top/left)	05h32m22s.31
RA (top/right)	05h33m46s.80
RA (bottom/right)	05h37m02s.48
RA (bottom/left)	05h35m39s.47

Dec (center)	+22°00′48″.5
Dec (top/left)	+22°28′24″.0
Dec (top/right)	+21°20′15″.0
Dec (bottom/right)	+21°33′09″.6
Dec (bottom/left)	+22°41′24″.3

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Messier 1 - the crab nebula - 5 weeks later

Revision title: Messier 1 - the crab nebula - 5 weeks later

Messier 1 - the crab nebula - 5 weeks later

Revision title: Messier 1 - the crab nebula - 5 weeks later

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Messier 1 - the crab nebula - 5 weeks later

Revision title: Messier 1 - the crab nebula - 5 weeks later

Messier 1 - the crab nebula - 5 weeks later

Revision title: Messier 1 - the crab nebula - 5 weeks later

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