Jewel of the Sword (M42) (C. Jonas Moiel)

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 · HD36342 · HD36365 · HD36528 · HD36539 · HD36540 · HD36541 · HD36559 · HD36560 · HD36606 · HD36629 · HD36655 · HD36670 · HD36671 · HD36713 · HD36782 · HD36842 · HD36843 · HD36865 · And 76 more.

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Jewel of the Sword (M42)

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Jewel of the Sword (M42)

The great Orion nebula (M42) in LRGB!

With over two month of consecutive clouds in Oregon, we had a night around the new moon in February with clearing. I ended up driving a few hours from home to get to Bortle 3 skies, and spent most of the night shooting in freezing 24F temperatures. There were light clouds for some of the night and I made the stupid mistake of shooting each filter completely rather than switching between filters throughout the night. I ended up with good data for L,R and B channels but did not have any usable Green. I ended up shooting green from Portland (Bortle 7) a few nights later and also added data to the blue channel. In the end, I was impressed with the amount of detail from mixing dark sky and light polluted sky data; and this is only about 5 hours of data at F4.8.

The well known challenge of processing M42 is dealing with the brightness in Trapezium, while not over-darkening the core. I ended up using a minimal about of HDR transformation and blending into the image with PixelMath. Also used GHS and masked stretching to blend the RGB and Luminance. There was a lot of nice color in the M42 core which I was excited to see!

Original
Final
B

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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	9248117
PixInsight job	1PBAJR2PYOQMZORDI6981ZTQYPX393ET
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h35m01s.349
RA (top/left)	05h39m22s.541
RA (top/right)	05h38m27s.935
RA (bottom/right)	05h30m40s.931
RA (bottom/left)	05h31m34s.960

Dec (center)	-05°23′41″.41
Dec (top/left)	-06°42′35″.40
Dec (top/right)	-03°55′09″.17
Dec (bottom/right)	-04°04′25″.80
Dec (bottom/left)	-06°51′57″.81

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Jewel of the Sword (M42)

Jewel of the Sword (M42)

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Image Index:

Contribution Index (beta):

Jewel of the Sword (M42)

Jewel of the Sword (M42)

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

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