The Crescent Nebula (Dave Boddington)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent nebula · HD192003 · HD192020 · HD192041 · HD192078 · HD192079 · HD192102 · HD192123 · HD192163 · HD192182 · HD192303 · HD192361 · HD192422 · HD192443 · HD192444 · HD192537 · HD192744 · HD192766 · HD228066 · HD228067 · HD228077 · HD228099 · HD228100 · HD228139 · HD228152 · HD228153 · HD228163 · HD228171 · HD228172 · HD228185 · And 54 more.

Image of the day 11/06/2019

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The Crescent Nebula

Image of the day 11/06/2019

Powered byPixInsight

The Crescent Nebula

The Crescent Nebula NGC6888 in Cygnus. This image combines data acquired in 2018 with my Esprit 150/ASI1600mm with some recent wider field data from my Esprit150/SX-46 and piggybacked Esprit100/ASI1600m. In total 9hrs Ha, 7hrs Oiii and 30mins each RGB for the stars. Processed in Pixinsight and Photoshop with starless narrowband images made using StarNet module in Pixinsight.

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 energising 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. (Source Wikipedia)

Also visible at the lower middle-right is the Soap Bubble Nebula which was discovered by amateur astronomer Dave Jurasevich using an Astro-Physics 160 mm refractor telescope with which he imaged the nebula on June 19, 2007 and on July 6, 2008 (Source Wikipedia)

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	Distinct awarded users	Total awarded images
Image of the day
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	Image of the day	Top pick	Top pick nominations	Total submitted
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This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Amateur hosting facility
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Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	3013988
PixInsight job	EI3XUK71UW74232HDQSOS2ZULO81BAP9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m50s.29
RA (top/left)	20h09m55s.51
RA (top/right)	20h09m57s.18
RA (bottom/right)	20h15m41s.67
RA (bottom/left)	20h15m46s.74

Dec (center)	+38°12′10″.2
Dec (top/left)	+38°55′06″.5
Dec (top/right)	+37°29′13″.0
Dec (bottom/right)	+37°28′56″.1
Dec (bottom/left)	+38°54′51″.1

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Image of the day 11/06/2019

The Crescent Nebula

Image of the day 11/06/2019

The Crescent Nebula

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Image of the day 11/06/2019

The Crescent Nebula

Image of the day 11/06/2019

The Crescent Nebula

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