NGC 6979 Pickering's Triangle (Eric Smith)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: HD197839 · HD198330 · HD198425 · HD198482 · HD198626 · HD335010 · HD335118 · HD335119 · HD335123 · HD335124 · HD335125 · HD335126 · HD335127 · HD335130 · HD335132 · HD335133 · HD335134 · HD335135 · HD335136 · HD335137 · HD335138 · HD335209 · HD335210 · HD335211 · HD335214 · HD335221 · LDN 868 · NGC 6979 · Sh2-103

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NGC 6979 Pickering's Triangle

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NGC 6979 Pickering's Triangle

Discovered in 1784 by William Herschel, NGC 6979 is a supernova remnant in the constellation of Cygnus and is one part of the more well known Veil Nebula or Cygnus Loop. The source of the supernova was from a star 20 times the size of our sun exploding between 10 and 20 thousand years ago. The thin strands are made of heated and ionised gases. In this image the teal tones represent oxygen gas while the red tones represent sulphur and hydrogen gases. Recent measurements estimate the distance from Earth to be 2400 light-years.

4 imaging sessions 19 - 24 June 2022
92x 600 second exposures using a dual narrow band filter
Total time: 15hours 20mins
Imaged from my backyard in Gérgal, Almería, Spain
Bortle Class: 4 to 5

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

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
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
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	5915056
PixInsight job	7EH2PS8B0U4CSGABZ07ZS653VY72660C
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h48m26s.29
RA (top/left)	20h52m38s.42
RA (top/right)	20h49m48s.40
RA (bottom/right)	20h44m10s.66
RA (bottom/left)	20h47m06s.35

Dec (center)	+31°27′47″.8
Dec (top/left)	+30°48′52″.1
Dec (top/right)	+32°31′59″.2
Dec (bottom/right)	+32°06′08″.2
Dec (bottom/left)	+30°23′35″.9

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NGC 6979 Pickering's Triangle

NGC 6979 Pickering's Triangle

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NGC 6979 Pickering's Triangle

NGC 6979 Pickering's Triangle

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