NGC 6888 | 1.25h of Crescent Nebula | Narrowband OSC (Peter Graf)

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

NGC 6888 | 1.25h of Crescent Nebula | Narrowband OSC

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

NGC 6888 | 1.25h of Crescent Nebula | Narrowband OSC

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

On a hot summer night from the balcony, there was only 1.25h of total exposure and lots of fuzzy air. Again, at least I am quite impressed with what can be seen.

Description (from Wikipedia)
The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 to 400,000 years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting temperatures.

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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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Status	Basic success
Started	...
Astrometry.net job	6687505
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 6888 | 1.25h of Crescent Nebula | Narrowband OSC

NGC 6888 | 1.25h of Crescent Nebula | Narrowband OSC

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NGC 6888 | 1.25h of Crescent Nebula | Narrowband OSC

NGC 6888 | 1.25h of Crescent Nebula | Narrowband OSC

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