B33 Horsehead nebula and Alnitak vicinities (Boris Emchenko)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 Ori · 48 sig Ori · 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD290812 · HD290814 · HD290815 · HD290852 · HD290853 · HD290854 · HD294272 · HD294297 · HD294298 · HD294302 · HD294303 · HD37524 · HD37564 · HD37641 · HD37661 · HD37662 · HD37686 · HD37699 · HD37805 · HD37903 · HD38087 · HD38249 · Horsehead nebula · And 11 more.

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B33 Horsehead nebula and Alnitak vicinities

Link: http://www.astromania.info/gallery/B33_neb/B33_LRGB2f4_lessmagenta.jpg

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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B33 Horsehead nebula and Alnitak vicinities

Link: http://www.astromania.info/gallery/B33_neb/B33_LRGB2f4_lessmagenta.jpg

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Famous Horsehead nebula (B33) is a part of Orion B molecular cloud which profounds into IC434 Hii cloud[1]
Also enigmatic Flame nebula (NGC2024)[2], NCG2023 and IC435 reflection nebulas are seen here

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Injected of Ha into luminance was used to overwhelm Alnitak heavily glow in front of nebulas. Also 2" filters on my f4.3 full frame system produce some uncorrectable vignetting - so processing included many DBE passes and multiscale processing with stars separation

Original
B
Final
C
D

B

Description: Reflection nebula small corrections, less sharpening

Uploaded: ...

C

Description: more contrast + colder colour palette

Uploaded: ...

D

Description: colder colours

Uploaded: ...

SW250\|300\|320

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Status	Advanced success
Started	...
Astrometry.net job	6652464
PixInsight job	79M070CJKYFQ39S2VHH1LTAL27JONNIA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m20s.299
RA (top/left)	05h38m19s.189
RA (top/right)	05h44m19s.137
RA (bottom/right)	05h44m21s.188
RA (bottom/left)	05h38m21s.554

Dec (center)	-02°08′16″.97
Dec (top/left)	-02°37′51″.58
Dec (top/right)	-02°38′41″.56
Dec (bottom/right)	-01°38′43″.34
Dec (bottom/left)	-01°37′51″.94

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B33 Horsehead nebula and Alnitak vicinities

B33 Horsehead nebula and Alnitak vicinities

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B33 Horsehead nebula and Alnitak vicinities

B33 Horsehead nebula and Alnitak vicinities

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