NGC 1977, M42 and M43 conveniently arranged (HDRcomposition data reprocessed) (Ian Dixon)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 Ori A) · 41 Ori C · 41 Ori D · 41 the01 Ori · 42 Ori) · 42 c Ori · 43 Ori) · 43 the02 Ori · 44 Ori) · 44 iot Ori · 45 Ori · Great Orion Nebula · HD294218 · HD294220 · HD294221 · HD294259 · HD294261 · HD294262 · HD294263 · HD36539 · HD36540 · HD36541 · HD36550 · HD36559 · HD36560 · HD36593 · HD36606 · HD36629 · HD36630 · HD36655 · And 89 more.

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NGC 1977, M42 and M43 conveniently arranged (HDRcomposition data reprocessed)

Revision title: version f

Powered byPixInsight

NGC 1977, M42 and M43 conveniently arranged (HDRcomposition data reprocessed)

Revision title: version f

This is a processing of lost files from early February in 2021.

How did this come about? Unfortunately my main astro computer (a 2018 MacBook) and my terabyte drive were stolen from my rented vehicle on a trip to California early fall of 2022 (family trip).

I have been scouring remaining thumbdrives for bits of data and today I found this largely unprocessed image, which I had put away for future processing. I could not find my flats for this session, which I normally put together with the lights, so, no luck there. So I simply went ahead with my first stretch.

The image doesn't have much integration time - my notes show 20 x 10 seconds, 20 x 30 seconds, 20 x 60 seconds, and 20 x 180 seconds. It also was the first light for my ZWO 2600mc which I very much enjoy using. I have to say that although this is a very frequent target, I am quite happy to have recovered this data. It was one of those things that I had meant to do, but never got round to doing it.

Thanks for looking!

++++++++++++++++++

Thanks to Rodd D. for jogging my memory on how I processed this in 2021!

Total integration is just over 1 hour and 30 min, combining several exposure times. The shortest is 10 seconds.

My notes show that this I put this together using HDR composition in PI back in late Feb of 2021. It sat on my thumbdrive like that until now.

so what we have is:

20 x 10 sec
20 x 30 sec
20 x 60 sec
20 x 180 sec

gain: 0
Camera: ZWO 2600MC

Original
Final
B

B

Title: version f

Description: Tried BlurX, as well as some GAME script to preserve the core while stretching.

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Status	Advanced success
Started	...
Astrometry.net job	6973428
PixInsight job	C487MJCAHKY5O0PQEK9MV72RB5AO5QA9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h34m41s.10
RA (top/left)	05h31m38s.40
RA (top/right)	05h31m39s.81
RA (bottom/right)	05h37m44s.81
RA (bottom/left)	05h37m42s.18

Dec (center)	-05°29′44″.2
Dec (top/left)	-04°14′23″.8
Dec (top/right)	-06°45′17″.8
Dec (bottom/right)	-06°45′00″.9
Dec (bottom/left)	-04°13′57″.2

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NGC 1977, M42 and M43 conveniently arranged (HDRcomposition data reprocessed)

Revision title: version f

NGC 1977, M42 and M43 conveniently arranged (HDRcomposition data reprocessed)

Revision title: version f

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Contribution Index (beta):

NGC 1977, M42 and M43 conveniently arranged (HDRcomposition data reprocessed)

Revision title: version f

NGC 1977, M42 and M43 conveniently arranged (HDRcomposition data reprocessed)

Revision title: version f

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

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