Horse of course (Tom Gray)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 Ori · 48 sig Ori · 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD294272 · HD37173 · HD37272 · HD37285 · HD37295 · HD37333 · HD37389 · HD37524 · HD37525 · HD37564 · HD37633 · HD37641 · HD37662 · HD37699 · HD37744 · HD37805 · HD37806 · HD37903 · HD37904 · HD37927 · HD38087 · Horsehead nebula · IC 434 · And 11 more.

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Horse of course

Revision title: Processed in Siril, Starnet and Astrosharp

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Horse of course

Revision title: Processed in Siril, Starnet and Astrosharp

My annual trip to B33 resulted in quite a pleasing image with my portable rig. Four hours integration shows off this dark horse against glorious curtains of Ha emissions excited by Alnitak. There is a price for using an OSC and dual band filter - halos! Perhaps I pushed the colour saturation too much, so I've posted a revision with more gentle processing in Nebulosity using levels and curves.

B

Title: Processed in Nebulosity

Description: Simple stretches and curves bring out the detail without saturating the colour.

Uploaded: ...

C

Title: A dark horse

Description: With a little more contrast.

Uploaded: ...

D

Title: Mono

Uploaded: ...

G

Title: A stereo 3D version

Description: If you like a challenge - relax your eyes and move the image close to your eyes until you see 3 images, them move it slowly out, concentrate on the middle image, allowing your eyes to cross 👀, until it pops into focus - you'll get a nice 3D effect. PS don’t stare too long or you’ll get a headache 🤕.

Uploaded: ...

H

Title: Processed in Siril, Starnet and Astrosharp

Description: Calibrated and Stacked in ASTAP, background extraction, colour calibration in Siril, Star removal in Starnet, Astrosharp starless image, recomposition in Siril.

Uploaded: ...

Altair Astro 183 M/C Hypercams

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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.

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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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Status	Advanced success
Started	...
Astrometry.net job	8052628
PixInsight job	9MGREQ1W7MCJMG5X1BUXW39XF0ZBA9BJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m03s.99
RA (top/left)	05h36m20s.37
RA (top/right)	05h36m15s.42
RA (bottom/right)	05h43m47s.62
RA (bottom/left)	05h43m52s.42

Dec (center)	-02°17′14″.2
Dec (top/left)	-01°39′25″.9
Dec (top/right)	-02°53′07″.1
Dec (bottom/right)	-02°54′58″.6
Dec (bottom/left)	-01°41′18″.4

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Horse of course

Revision title: Processed in Siril, Starnet and Astrosharp

Horse of course

Revision title: Processed in Siril, Starnet and Astrosharp

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Horse of course

Revision title: Processed in Siril, Starnet and Astrosharp

Horse of course

Revision title: Processed in Siril, Starnet and Astrosharp

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

G

H

Sky plot

Histogram

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