Jellyfish Nebula (Dan)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 10 Gem · 11 Gem · 12 Gem · 13 Gem) · 13 mu. Gem · 7 Gem) · 7 eta Gem · 8 Gem · 9 Gem · Calx (μ Gem · Gem A · HD254042 · HD254755 · HD43078 · HD43385 · HD43479 · HD43582 · HD43703 · HD43753 · HD43907 · HD43966 · HD44139 · HD44252 · HD44883 · HD44926 · HD44927 · HD44941 · IC 443 · IC 444 · LBN 840 · And 18 more.

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Jellyfish Nebula

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Jellyfish Nebula

This needs more data - maybe a lot more - but with the weather around here lately it's looking like that might not happen. I had to do some pretty violent application of NoiseXTerminator to minimize the grain without making it look too splotchy. Although the OIII in this target is fairly bright, it likely needs a few more hours of data from my skies.

What I did like about processing this image was the ability to try out NBColourMapper in PixInsight. I had only ever done one full NB image before, and ended up with the typical brown/yellow result. That was using standard PixelMath expressions, and the result was super bland. The SII should really be a golden color while the Ha should be closer to magenta. This distinguishes the SII from the Ha nicely and doesn't leave you with an ugly or bland result.

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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
Artificial satellite

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	...
PixInsight job	GA9ILAB6PNQR2XIYMOT34IYV0C902DP6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h19m56s.53
RA (top/left)	06h26m52s.87
RA (top/right)	06h26m26s.10
RA (bottom/right)	06h13m05s.79
RA (bottom/left)	06h13m20s.50

Dec (center)	+23°00′08″.5
Dec (top/left)	+23°57′58″.2
Dec (top/right)	+21°54′10″.4
Dec (bottom/right)	+22°01′09″.2
Dec (bottom/left)	+24°05′08″.8

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Jellyfish Nebula

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Jellyfish Nebula

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