The Three Sisters in Orion **APOD GrAG 2021.12.17** (Andre Vilhena)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 31 Ori · 34 del Ori · 46 eps Ori · 48 sig Ori · 50 zet Ori · Alnilam · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 423 · IC 426 · IC 431 · IC 432 · IC 434 · IC 435 · LBN 913 · LBN 914 · LBN 918 · LBN 921 · LBN 924 · LBN 925 · LBN 927 · LBN 928 · LBN 935 · LBN 940 · LBN 944 · LBN 946 · LBN 950 · LBN 953 · And 26 more.

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The Three Sisters in Orion APOD GrAG 2021.12.17

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The Three Sisters in Orion APOD GrAG 2021.12.17

The Three Sisters, the Three King or also Orion's Belt is one of the most recognizable asterism in the night sky. Composed by Alnitak, Alnilam and Mintaka, it hides a secret in plain sight - the Horsehead and Flame nebulas. Invisible to the naked eye, these famous and beautiful nebulas are easily seen in astrophotos and, rightly so, one of the preferred targets.
With enough integration time, the surrounding nebula becomes visible too and adds a lot to the region. In this photo, I've tried to frame this region in a way that Orion's belt and all the nebulas around are well highligted. While important, the Horsehead nebula is not intended to be the main feature.
I hope you enjoy.

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Description: New revision - better star control and profile, slightly less sharpened and saturared and background nebula more evident.

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Trevinca Skies

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Status	Advanced success
Started	...
Astrometry.net job	5518641
PixInsight job	7WKVM5VEM2VZG8POPDPD9NVP2MV3W9S2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h37m43s.53
RA (top/left)	05h25m25s.94
RA (top/right)	05h39m05s.79
RA (bottom/right)	05h50m01s.78
RA (bottom/left)	05h36m21s.94

Dec (center)	-01°47′31″.8
Dec (top/left)	-00°51′35″.1
Dec (top/right)	-04°59′08″.5
Dec (bottom/right)	-02°43′19″.6
Dec (bottom/left)	+01°23′58″.7

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The Three Sisters in Orion APOD GrAG 2021.12.17

The Three Sisters in Orion APOD GrAG 2021.12.17

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The Three Sisters in Orion **APOD GrAG 2021.12.17**

The Three Sisters in Orion **APOD GrAG 2021.12.17**

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The Three Sisters in Orion APOD GrAG 2021.12.17

The Three Sisters in Orion APOD GrAG 2021.12.17