IC5146_Cocoon Nebula (Bernard DELATTRE)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon Nebula · IC 5146 · Sh2-125 · VdB147

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IC5146_Cocoon Nebula

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IC5146_Cocoon Nebula

IC 5146 est composé d’une nébuleuse à émission et d’un amas ouvert situés à environ 4 000 années-lumière de la Terre dans la constellation du Cygne. Sa forme rappelle celle d’un cocon, enveloppe qui contient des insectes ou un vers à soie, d’où son nom commun. Elle a un diamètre d’environ 15 années-lumière. Elle se trouve près du bord Est de la constellation, près de celle du Lézard, en plein dans la Voie lactée, à une heure en ascension droite de la nébuleuse de l’Amérique du Nord. Comme d’autres régions de formation d’étoiles, elle se distingue par un gaz d’hydrogène rouge et brillant excité par de jeunes étoiles chaudes et d’une lumière stellaire bleue réfléchie par la poussière au bord d’un nuage moléculaire. L’étoile brillante près du centre de cette nébuleuse n’a que quelques centaines de milliers d’années. C’est surtout elle qui éclaire la majorité de la nébuleuse et qui fait ressortir les très belles nuances de couleur rouge de la nébuleuse.

(source: texte Richard BEAUREGARD)
https://fr.wikipedia.org/wiki/IC_5146

Original
Final
B

CMOS Imagers
ZWO ASI1600MM/QHY163M
N.I.N.A. Users
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TS-Optics or SharpStar 94EDPH

0a.Most Recent
2a. Images L_RVB
Ctlg IC (complémentaire NGC)
Ctlg Sh2 (nébuleuses diffuses)
Nébuleuses diffuses par émission & réflexion

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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	...
PixInsight job	3HWDAX3MPIZIRNB0FE92XSQPWR56OMES
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h53m28s.75
RA (top/left)	21h57m04s.25
RA (top/right)	21h49m38s.30
RA (bottom/right)	21h49m56s.65
RA (bottom/left)	21h57m15s.87

Dec (center)	+47°15′58″.2
Dec (top/left)	+47°40′52″.1
Dec (top/right)	+47°36′36″.1
Dec (bottom/right)	+46°50′36″.6
Dec (bottom/left)	+46°54′51″.9

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