IC424+NGC2024 Horsehead + Flame Nebula near Alnitak in Orion (mag 3-11) - 4h40 (Arny)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD290812 · HD290814 · HD290815 · HD294297 · HD294298 · HD294300 · HD294301 · HD294302 · HD294303 · HD294304 · HD37633 · HD37641 · HD37661 · HD37662 · HD37686 · HD37699 · HD37776 · HD37805 · HD37806 · HD37903 · Horsehead nebula · IC 432 · IC 434 · LBN 944 · LBN 946 · And 7 more.

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IC424+NGC2024 Horsehead + Flame Nebula near Alnitak in Orion (mag 3-11) - 4h40

Revision title: some finetuning of blue tones

Powered byPixInsight

IC424+NGC2024 Horsehead + Flame Nebula near Alnitak in Orion (mag 3-11) - 4h40

Revision title: some finetuning of blue tones

Doing a 4h40 session of Alnitak and its neighbouring horesehead nebula and IC424 just on top of famous orion nebula in a cristal clear night on my 8" Newton and processing in PixInsight with BlurXTerminator.

Unfortunately I got three reflections of the primary mirror on the image, as I probably was not collimated well enough.
Not sure how I managed to get this, as I did collimate just before the session.
It only became apparent after I included the field flattener into the optical train, which I had forgotten at first and where I ran into some backfocus issues.

Need to work this out ...

Original
Final
C

C

Title: some finetuning of blue tones

Uploaded: ...

Nebulae

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Status	Advanced success
Started	...
Astrometry.net job	7183708
PixInsight job	QJ6ON5G4ZIGQTDAAETROW89NUQTJVHXS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m11s.682
RA (top/left)	05h42m57s.889
RA (top/right)	05h42m58s.850
RA (bottom/right)	05h39m25s.770
RA (bottom/left)	05h39m24s.857

Dec (center)	-02°07′52″.62
Dec (top/left)	-02°47′47″.33
Dec (top/right)	-01°28′12″.47
Dec (bottom/right)	-01°28′05″.30
Dec (bottom/left)	-02°47′33″.40

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IC424+NGC2024 Horsehead + Flame Nebula near Alnitak in Orion (mag 3-11) - 4h40

Revision title: some finetuning of blue tones

IC424+NGC2024 Horsehead + Flame Nebula near Alnitak in Orion (mag 3-11) - 4h40

Revision title: some finetuning of blue tones

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IC424+NGC2024 Horsehead + Flame Nebula near Alnitak in Orion (mag 3-11) - 4h40

Revision title: some finetuning of blue tones

IC424+NGC2024 Horsehead + Flame Nebula near Alnitak in Orion (mag 3-11) - 4h40

Revision title: some finetuning of blue tones

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