IC 443 - Jellyfish Nebula (Liquidtravel)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 10 Gem · 11 Gem · 12 Gem · 13 Gem) · 13 mu. Gem · 7 Gem) · 7 eta Gem · 9 Gem · Calx (μ Gem · Gem A · HD254755 · HD43078 · HD43385 · HD43479 · HD43582 · HD43703 · HD43753 · HD43907 · HD43966 · HD44139 · HD44252 · IC 443 · IC 444 · LBN 840 · LBN 841 · LBN 844 · LBN 845 · LDN 1564 · LDN 1565 · LDN 1566 · And 11 more.

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IC 443 - Jellyfish Nebula

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IC 443 - Jellyfish Nebula

The Jellyfish Nebula - also known as IC 443 and Sh2-248 - is a supernova remnant located 5,000 lightyears away and is estimated to be roughly 70 light-years in size. The glowing cosmic tendrils and fat bulbous 'head' are what give this deep-sky object its name, as it resembles a cosmic jellyfish floating through the Universe. It is the remains of a massive star that ran out of fuel and exploded as a supernova, leaving behind a shell of glowing gas that might have occurred as recently as 3,000 - 30,000 years ago. To find it, just look towards the constellation Gemini.

There are also two bright stars, Tejat (231 light-years away), and Propus (391 light-years away) pictured.

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	9084154
PixInsight job	5KINVGXLDO0ZFPF15EHOWBRLRH8XU084
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h18m54s.87
RA (top/left)	06h19m37s.93
RA (top/right)	06h25m31s.29
RA (bottom/right)	06h18m10s.77
RA (bottom/left)	06h12m19s.37

Dec (center)	+22°40′21″.1
Dec (top/left)	+21°09′01″.6
Dec (top/right)	+22°49′57″.1
Dec (bottom/right)	+24°11′43″.2
Dec (bottom/left)	+22°29′49″.2

Image Index:

Contribution Index (beta):

IC 443 - Jellyfish Nebula

IC 443 - Jellyfish Nebula

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Image Index:

Contribution Index (beta):

IC 443 - Jellyfish Nebula

IC 443 - Jellyfish Nebula

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