IC443 Jellyfish Nebula (Walter Torres)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 13 Gem) · 7 Gem) · Calx (μ Gem · Gem A · IC 443 · IC 444 · M 35 · Monkey Head Nebula · NGC 2158 · NGC 2168 · NGC 2174 · Part of the constellation Gemini (Gem) · Praepes (η Gem · Tejat Posterior · Tejat Prior · The star 12 Gem · The star 3 Gem · The star 5 Gem · The star 6 Gem · The star 68 Ori · The star 71 Ori · The star 8 Gem · The star 9 Gem · The star Propus · The star Tejat

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IC443 Jellyfish Nebula

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IC443 Jellyfish Nebula

I captured this image over three nights from my backyard in Oswego, IL. with my Rokinon 135mm F2.0 lens and mono camera. It's cropped about 28% due to camera alignment/rotation errors on my part from night to night. The image is composed of SHO but I took some liberties with the colors to prevent green from taking over the image. Although it was taken over multiple nights and during a new moon, I was only able to keep about 6hrs of data and ended up discarding about 12hrs due to clouds.

Capture details:
All filters taken at -20C, 121 gain, 30 offset, Bin 2, dither every image
13 x 300sec Ha
16 x 600sec Sii
14 x 600sec Oiii
30 Flats, 30 Darkflats, and Master Dark.

Processed in Photoshop: SHO palette, Ha layer for luminance, HaGO palette layer at 50% fill for color, AstroFlat Pro filter, and denoised.

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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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	Basic success
Started	...
Astrometry.net job	5786691
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC443 Jellyfish Nebula

IC443 Jellyfish Nebula

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Image Index:

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IC443 Jellyfish Nebula

IC443 Jellyfish Nebula

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