IC434 in LHa-RHaGB (Nicola Beltraminelli)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 sig Ori · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD294272 · HD37344 · HD37389 · HD37524 · HD37525 · HD37564 · HD37633 · HD37641 · HD37642 · HD37660 · HD37661 · HD37662 · HD37674 · HD37687 · HD37699 · HD37744 · HD37776 · HD37805 · HD37806 · HD37903 · HD37904 · HD37927 · HD37985 · HD38087 · HD38099 · And 20 more.

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IC434 in LHa-RHaGB

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IC434 in LHa-RHaGB

The Horsehead Nebula is a dark nebula in the constellation Orion. Also known as Barnard 33, the unusual shape was first discovered on a photographic plate in 1888 by Scottish astronomer Williamina Fleming taken at the Harvard College Observatory. The Horsehead Nebula is approximately 1500 light years from Earth.

Classically, this wonderful nebula is taken by using the L filter for the luminance and the RGB channels for the colors. Of course many people also use Ha as an additional contribution to achieve a cleaner/more contrasted signal. The key point is to find the correct balance between Ha and L in Luminance to avoid either too much red or loose details from Ha in the final picture. By playing around with Ha, I found that the best solution was to combine 70% opacity in Ha and 50% in L for the luminance, as well as ~35% opacity in Ha and 65% opacity R for the red channel.

I hope that you will enjoy this personal interpretation of the famous Horsehead nebula

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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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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	5704979
PixInsight job	BGUHFVOS85QHIOQ2EW95648S0WIJ0L7R
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m42s.95
RA (top/left)	05h37m44s.80
RA (top/right)	05h38m14s.66
RA (bottom/right)	05h43m41s.49
RA (bottom/left)	05h43m11s.20

Dec (center)	-02°25′39″.5
Dec (top/left)	-01°27′00″.1
Dec (top/right)	-03°29′17″.5
Dec (bottom/right)	-03°24′18″.0
Dec (bottom/left)	-01°21′57″.8

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IC434 in LHa-RHaGB

IC434 in LHa-RHaGB

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IC434 in LHa-RHaGB

IC434 in LHa-RHaGB

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