W63 Supernova Remnant - HSO (Darius Kopriva)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: LBN 310 · LBN 314 · LBN 325 · LDN 908 · LDN 909 · LDN 910

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W63 Supernova Remnant - HSO

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W63 Supernova Remnant - HSO

This is the supernova remnant W63 in constellation cygnus.

A supernova remnant (SNR) is the structure resulting from the explosion of a star in a supernova. The supernova remnant is bounded by an expanding shock wave, and consists of ejected material expanding from the explosion, and the interstellar material it sweeps up and shocks along the way.

There are two common routes to a supernova: either a massive star may run out of fuel, ceasing to generate fusion energy in its core, and collapsing inward under the force of its own gravity to form a neutron star or a black hole; or a white dwarf star may accrete material from a companion star until it reaches a critical mass and undergoes a thermonuclear explosion.

In either case, the resulting supernova explosion expels much or all of the stellar material with velocities as much as 10% the speed of light (or approximately 30,000 km/s). These speeds are highly supersonic, so a strong shock wave forms ahead of the ejecta. That heats the upstream plasma up to temperatures well above millions of K. The shock continuously slows down over time as it sweeps up the ambient medium, but it can expand over hundreds or thousands of years and over tens of parsecs before its speed falls below the local sound speed.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	5409380
PixInsight job	A18BZA2K32OIWPPY72ZVQZNLX4QYJYZ9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h18m49s.65
RA (top/left)	20h23m16s.25
RA (top/right)	20h14m36s.14
RA (bottom/right)	20h14m30s.33
RA (bottom/left)	20h22m55s.87

Dec (center)	+45°36′47″.1
Dec (top/left)	+46°22′21″.4
Dec (top/right)	+46°24′33″.1
Dec (bottom/right)	+44°50′35″.0
Dec (bottom/left)	+44°48′27″.6

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W63 Supernova Remnant - HSO

W63 Supernova Remnant - HSO

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W63 Supernova Remnant - HSO

W63 Supernova Remnant - HSO

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