IC443 (Sh2-248, Jellyfish Nebula) (spazmagi)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: HD254265 · HD254345 · HD254390 · HD254443 · HD254475 · HD254476 · HD254477 · HD254498 · HD254520 · HD254521 · HD254576 · HD254577 · HD254632 · HD254656 · HD254700 · HD254701 · HD254724 · HD254725 · HD254755 · HD254756 · HD43582 · LBN 844

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IC443 (Sh2-248, Jellyfish Nebula)

Revision title: IC443 (Sh2-248-248, Jellyfish Nebula) with added data

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IC443 (Sh2-248, Jellyfish Nebula)

Revision title: IC443 (Sh2-248-248, Jellyfish Nebula) with added data

IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a galactic supernova remnant (SNR) in the constellation Gemini. On the plane of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.

Date: 16 Jan 2023
Subs: 54 x 180s
Scope: Orion 102mm APO
Mount: Skywatcher EQ6-R Pro
Primary Camera: ZWO ASI183MC Pro
Gain: 100
Guide Scope: Williams Optics 50mm UniGuide
Guide Cmaera: ZWO ASI120MM Mini
Other: ASIAIR Plus (3rd Gen), ZWO EAF

Edit:
Date: 18 Jan 2023
Subs: 100 x 180s

Total:
Subs: 154 x 180s

Original
Final
B

B

Title: IC443 (Sh2-248-248, Jellyfish Nebula) with added data

Description: Captured an additional 5 hours of data on 2023-01-18

Added: 100x 180s

Uploaded: ...

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	6992794
PixInsight job	3IS3K9LJU2LVHMX5PONI4DRT5BX0O9C1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h17m40s.966
RA (top/left)	06h18m50s.135
RA (top/right)	06h18m34s.828
RA (bottom/right)	06h16m31s.970
RA (bottom/left)	06h16m47s.489

Dec (center)	+22°40′32″.62
Dec (top/left)	+22°16′17″.66
Dec (top/right)	+23°06′49″.19
Dec (bottom/right)	+23°04′46″.86
Dec (bottom/left)	+22°14′16″.89

Image Index:

Contribution Index (beta):

IC443 (Sh2-248, Jellyfish Nebula)

Revision title: IC443 (Sh2-248-248, Jellyfish Nebula) with added data

IC443 (Sh2-248, Jellyfish Nebula)

Revision title: IC443 (Sh2-248-248, Jellyfish Nebula) with added data

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IC443 (Sh2-248, Jellyfish Nebula)

Revision title: IC443 (Sh2-248-248, Jellyfish Nebula) with added data

IC443 (Sh2-248, Jellyfish Nebula)

Revision title: IC443 (Sh2-248-248, Jellyfish Nebula) with added data

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