NGC 6888 - Crescent nebula in LHa-RHaGB (Astro-TAPAS)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent nebula · NGC 6888

NGC 6888 - Crescent nebula in LHa-RHaGB, Astro-TAPAS

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NGC 6888 - Crescent nebula in LHa-RHaGB

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NGC 6888 - Crescent nebula in LHa-RHaGB

Our second target during our tuning phase (always with a set-up not completly optimized) is in LHa-RHaGB.

The back-focus isn’t the good one because it’s not our normal configuration et the focusing problems were not resolved.

The Crescent Nebula is an emission nebula situated about 5,000 light years away. It lies in a patch of Milky Way that runs right through Cygnus, the Swan. The richness of the Milky Way in this region is apparent from the vast number of stars in this image. The image actually looks grainy due to the very faintest stars in the background. The red hue of the nebula and the surrounding area is due mostly to glowing hydrogen gas. The Crescent Nebula is being energized and “blown out” by energetic winds coming from the powerful central star, WR136. Burning fuel at a prodigious rate and near the end of its stellar life this star should ultimately go out with a bang in a spectacular supernovaexplosion. The WR signifies that it is a “Wolf-Rayet” star — very hot, at least 20 times the mass of the sun, and losing mass rapidly. WR136 is shedding the equivalent of the Sun’s mass every 10,000 years and that it will probably explode in a supernova.

Entre Encinas y Estrellas (e-EyE)

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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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Basic success
Started	...
Astrometry.net job	1869736
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 6888 - Crescent nebula in LHa-RHaGB

NGC 6888 - Crescent nebula in LHa-RHaGB

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NGC 6888 - Crescent nebula in LHa-RHaGB

NGC 6888 - Crescent nebula in LHa-RHaGB

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