NGC 6960 The Witch broom nebula (MARK Shelton)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 52 Cyg · NGC 6960 · The star 52 Cyg · Veil Nebula

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NGC 6960 The Witch broom nebula

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NGC 6960 The Witch broom nebula

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.[4]

It constitutes the visible portions of the Cygnus Loop,[5] a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago.[2] At the time of explosion, the supernova would have appeared brighter than Venus in the sky, and visible in daytime.[6] The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon).[4] While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements.[2] (The distance estimates affect also the estimates of size and age.)

The Hubble Space Telescope captured several images of the nebula. The analysis of the emissions from the nebula indicate the presence of oxygen, sulfur, and hydrogen.[7] The Cygnus Loop is also a strong emitter of radio waves and x-rays.[8]

On 24 September 2015 new images and videos of the Veil Nebula were released by the Space Telescope Science Institute,[9] with an explanation of the images.[10]

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Nebula

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Distribution of astrophotographers

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Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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	5740327
PixInsight job	VZVPMETRXHKV247NQK4Q3FVISC13S8X1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h45m49s.36
RA (top/left)	20h43m34s.19
RA (top/right)	20h43m25s.59
RA (bottom/right)	20h48m03s.57
RA (bottom/left)	20h48m14s.18

Dec (center)	+30°39′29″.9
Dec (top/left)	+31°02′38″.1
Dec (top/right)	+30°19′03″.4
Dec (bottom/right)	+30°16′11″.4
Dec (bottom/left)	+30°59′45″.3

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NGC 6960 The Witch broom nebula

NGC 6960 The Witch broom nebula

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NGC 6960 The Witch broom nebula

NGC 6960 The Witch broom nebula

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