NGC 6888 - THE CRESCENT NEBULA - CYGNUS CONSTELLATION (Stefano Attalienti)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · LBN 203 · NGC 6888 · Sh2-105

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NGC 6888 - THE CRESCENT NEBULA - CYGNUS CONSTELLATION

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NGC 6888 - THE CRESCENT NEBULA - CYGNUS CONSTELLATION

NGC 6888 also known as the Crescent Nebula is a diffuse nebula in the central part of the Cygnus constellation.
It is a typical stellar wind bubble generated by a massive Wolf-Rayet star (the HD 192163), which is located inside it. This star would also be responsible for the nebula, which would be the material of the outermost layers of the ejected star. This wind collided with the material ejected by the star when it reached the red giant stage, between 250,000 and 400,000 years ago, energizing it. The result is a gaseous shell and the presence of two shock waves, which then interacted with the surrounding dense interstellar medium.
The nebula extends into space for a size of about 16 light years. A Bok globule as a black spot is visible in the center. The photo was acquired with the HOO technique, then with the acquisition through filters of the bands of ionized hydrogen and ionized oxygen and then mixed all through software.

CMOS Imagers
Cloudy Nights
Constructive Critique Requested
Imagers of Italy
Narrowband imaging
Suburban Astrophotography

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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	6575901
PixInsight job	0H10W3R16WTJ56257PM0ZFZCT7JW6559
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m12s.457
RA (top/left)	20h12m54s.814
RA (top/right)	20h10m13s.846
RA (bottom/right)	20h11m30s.323
RA (bottom/left)	20h14m11s.102

Dec (center)	+38°19′58″.40
Dec (top/left)	+38°41′43″.40
Dec (top/right)	+38°19′10″.19
Dec (bottom/right)	+37°58′11″.46
Dec (bottom/left)	+38°20′39″.20

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NGC 6888 - THE CRESCENT NEBULA - CYGNUS CONSTELLATION

NGC 6888 - THE CRESCENT NEBULA - CYGNUS CONSTELLATION

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NGC 6888 - THE CRESCENT NEBULA - CYGNUS CONSTELLATION

NGC 6888 - THE CRESCENT NEBULA - CYGNUS CONSTELLATION

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