Horsehead and Flame Nebula in HaRGB (Evelyn Decker)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 sig Ori · 50 zet Ori · Alnitak · B33 · Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · NGC 2023 · NGC 2024 · Orion · Sh2-277 · The star Alnitak (ζOri) · The star σOri · VdB51

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Horsehead and Flame Nebula in HaRGB

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Horsehead and Flame Nebula in HaRGB

B

Description: Darkened background, sharpened slightly.

Uploaded: ...

C

Description: Reprocessed from the ground-up using flats from a different night (not the best idea, but better than completely dysfunctional flats). Better colors, better sky balance, Alnitak is a bit more bloated.

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E

Description: Stretched red nebulosity a little more (boosting red channel colors), sharpened the image a little more.

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F

Description: Experimental edit: Redid Ha data and applied that layer with the same RGB-Ha combination technique to the original HaRGB photo to further enhance the details in the nebula and out. I might clean up the process a little more later.

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G

Description: A small amount of noise control applied, solid attempt at balancing bright nebulosity with fainter nebulosity.

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H

Description: Steps taken towards removing amp-glow in the corner, color handled better, sharpened a little bit more

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I

Description: Image is calmer overall, noise heavily reduced, colors improved somewhat.

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J

Description: Reprocessed with the intention of smoothening the photo out. Picture is way larger and the resolution is way finer.

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K

Description: Experimental reprocess.. instead of making a separate HaR file when combining Ha and RGB data together, I just replaced the R file entirely with the standalone Ha. I played around with some settings to clean up any artifacts from the combination.

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Nebulae

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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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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	3236942
PixInsight job	GDRSFMAL0P7RDLSGKS4OT7DITN54292T
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h40m54s.51
RA (top/left)	05h38m02s.28
RA (top/right)	05h38m22s.12
RA (bottom/right)	05h43m47s.24
RA (bottom/left)	05h43m26s.80

Dec (center)	-02°23′53″.9
Dec (top/left)	-01°25′45″.2
Dec (top/right)	-03°25′27″.1
Dec (bottom/right)	-03°22′01″.3
Dec (bottom/left)	-01°22′16″.1

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Horsehead and Flame Nebula in HaRGB

Horsehead and Flame Nebula in HaRGB

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Image Index:

Contribution Index (beta):

Horsehead and Flame Nebula in HaRGB

Horsehead and Flame Nebula in HaRGB

Equipment

Acquisition details

Comments

Revisions

B

C

E

F

G

H

I

J

K

Sky plot

Histogram

In these collections

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