Alnitak (Zeta Orionis) and friends (Andreas Eleftheriou)

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

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Alnitak (Zeta Orionis) and friends

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Alnitak (Zeta Orionis) and friends

Versions A,B and C: My 3rd attempt in three years to capture this great target from my light polluted area. Previous attempts with OSC and LRGB mono did not produce satisfactory results, with or without LP filters. I have only use RGB on this one and the result is much better. I still need to add some Ha data :-)

Version D, E, F and G: almost 3.5 Hours of Ha added. I have used the Ha to enhance both Red colour, as well as the Luminance channel, both using PixelMath, and then LRGBCombination of PixInsight. I tried to avoid the "salmon peach" colour after applying the enhanced HaL Luminance by experimenting with the amount of L and Saturation settings of the LLRGBCombination tool. I like the result much better than the RGB image of previous versions. I hope you like it, comments and critics on the the result or the procedure of combining RGB with Ha narrow-band are welcome!

B

Description: RGB

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C

Description: RGB

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D

Description: 3.5Hours of Ha added.

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E

Description: 3.5Hours of Ha added

Uploaded: ...

F

Description: 3.5Hours of Ha added

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G

Description: 3.5Hours of Ha added

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H

Description: [Upload after crash]

Uploaded: ...

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
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Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Amateur hosting facility
Public amaeteur data
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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	3264666
PixInsight job	4AZC7BEK04DAN944Q4C0E7I6DFR9D5HU
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h41m06s.29
RA (top/left)	05h39m01s.65
RA (top/right)	05h39m08s.37
RA (bottom/right)	05h43m11s.40
RA (bottom/left)	05h43m04s.10

Dec (center)	-02°11′18″.7
Dec (top/left)	-01°32′45″.9
Dec (top/right)	-02°51′09″.2
Dec (bottom/right)	-02°49′50″.6
Dec (bottom/left)	-01°31′27″.5

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Alnitak (Zeta Orionis) and friends

Alnitak (Zeta Orionis) and friends

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Image Index:

Contribution Index (beta):

Alnitak (Zeta Orionis) and friends

Alnitak (Zeta Orionis) and friends

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

E

F

G

H

Sky plot

Histogram

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