M57 - Ring Nebula (Darius Kopriva)

Celestial hemisphere: Northern · Constellation: Lyra (Lyr) · Contains: HD175701 · IC 1296 · M 57 · NGC 6720 · Ring Nebula

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M57 - Ring Nebula

Link: https://dako-astrophotography.com/Image/1iyruj

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M57 - Ring Nebula

Link: https://dako-astrophotography.com/Image/1iyruj

The Ring Nebula (also catalogued as Messier 57, M57 and NGC 6720) is a planetary nebula in the mildly northern constellation of Lyra. Such a nebula is formed when a star, during the last stages of its evolution before becoming a white dwarf, expels a vast luminous envelope of ionized gas into the surrounding interstellar space.

This nebula was discovered by the French astronomer Charles Messier while searching for comets in late January 1779. Messier's report of his independent discovery of Comet Bode reached fellow French astronomer Antoine Darquier de Pellepoix two weeks later, who then independently rediscovered the nebula while following the comet. Darquier later reported that it was "...as large as Jupiter and resembles a planet which is fading" (which may have contributed to the use of the persistent "planetary nebula" terminology). It would be entered into Messier's catalogue as the 57th object. Messier and German-born astronomer William Herschel speculated that the nebula was formed by multiple faint stars that were unresolvable with his telescope.

Southern Hemisphere Astro

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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.
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	n/a
PixInsight job	7Q8NNP3ZD1NX6FIE3TDJB0WLTLBB6A3H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h53m40s.19
RA (top/left)	18h51m44s.96
RA (top/right)	18h51m46s.25
RA (bottom/right)	18h55m33s.85
RA (bottom/left)	18h55m35s.56

Dec (center)	+33°00′37″.7
Dec (top/left)	+33°37′13″.10
Dec (top/right)	+32°23′58″.5
Dec (bottom/right)	+32°23′53″.9
Dec (bottom/left)	+33°37′10″.2

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M57 - Ring Nebula

M57 - Ring Nebula

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M57 - Ring Nebula

M57 - Ring Nebula

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