IC443 - JELLYFISH NEBULA (Giuseppe De Pace)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 13 Gem) · 7 Gem) · Calx (μ Gem · Gem A · IC 443 · IC 444 · Part of the constellation Gemini (Gem) · Praepes (η Gem · Tejat Posterior · Tejat Prior · The star 12 Gem · The star 9 Gem · The star Propus · The star Tejat

IC443 - JELLYFISH NEBULA, Giuseppe De Pace

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IC443 - JELLYFISH NEBULA

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IC443 - JELLYFISH NEBULA

IC 443 is a supernova remnant located in the constellation Gemini. It is believed to have originated from a supernova that exploded sometime between 3,000 and 30,000 years ago.
IC 443 has an angular diameter of 50 arc minutes, which at a distance of 5,000 light years equates to a true size of about 70 light years.
The nebula, both in the visible and in radio waves, has a shell shape, consisting of two halves with different radius and center; a third nebulous shell, initially attributed to IC 443, is now recognized as an older supernova remnant, perhaps 100,000 years old.

EQUIPMENT:
ASKAR FRA 600 QUINTUPLET 108/600 reduced to 420 @F3.9
QHY268M Pro @ -15°C [gain:56-offset:25]
SkyWatcher AZEQ6 GT
41 minutes (41 light 60") for RED
41 minutes (41 light 60") for GREEN
41 minutes (41 light 60") for BLU
2 hours and 45 minutes (33 lights of 300") for YES
7h and 5 minutes (85 300" lights) for HA
11h and 55 minutes (143 light 300") for OIII
Optolong 3nm SHO filters
Filter wheel 7×2″ QHYCFW3
QHY OAG-M with QHY5II-L mono
N.I.N.A. + APP + PixInsight + PS
Balcony of the house in Bortle 8 (TURIN) December 2023
(about 22 hours total, unbalanced on OIII, because the moon and the weather did not give me the opportunity to integrate SII)

Imagers of Italy

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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.

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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.
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Status	Basic success
Started	...
Astrometry.net job	8967299
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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IC443 - JELLYFISH NEBULA

IC443 - JELLYFISH NEBULA

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