Cygnus Loop - A Stellar Death (Andrei Gusan)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 52 Cyg · IC 1340 · NGC 6960 · NGC 6974 · NGC 6979 · NGC 6992 · NGC 6995 · Sh2-103 · The star 52Cyg · Veil Nebula

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Cygnus Loop - A Stellar Death

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Cygnus Loop - A Stellar Death

More than ten thousand years ago a new light would have suddenly have appeared in the night sky announcing one of the most violent cosmic event: death explosion of a massive star, also known as supernova. For a week or so the supernova outshined all of the other stars in our galaxy. Then it quickly faded away and all that was left was a tiny, dense object – a neutron star or a black hole (we don't know yet) surrounded by an expanding cloud of very hot ionized gas and dust. The elements made inside the supergiant (such as oxygen, carbon and iron) are scattered through space. This stardust eventually makes other stars, planets and possibly life, just like you and me. Yes! We, and everything you see around you, are all made of star dust!

This cosmic ghost picture was taken from my backyard during several short summer nights with a wide field lens and a dedicated mono astro-camera used with special narrow band filters. I needed more than 17 hours total exposure and few more hours of post processing to capture all those fine human-eye invisible tiny details.

The object is known as The Veil Nebula and it's located in the constellation Cygnus. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter of the full Moon). Recent direct astrometric measurements concluded that it's located at 2400 light-years away from our planet.

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	3738132
PixInsight job	DSW1F877HLWGQPP5KSVPLS7D519MCALN
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h51m25s.54
RA (top/left)	20h58m26s.71
RA (top/right)	20h44m41s.37
RA (bottom/right)	20h44m40s.54
RA (bottom/left)	20h57m53s.41

Dec (center)	+30°41′25″.5
Dec (top/left)	+32°37′30″.8
Dec (top/right)	+32°40′20″.0
Dec (bottom/right)	+28°43′50″.5
Dec (bottom/left)	+28°41′15″.6

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Cygnus Loop - A Stellar Death

Cygnus Loop - A Stellar Death

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Image Index:

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Cygnus Loop - A Stellar Death

Cygnus Loop - A Stellar Death

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