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 30,000 - 35,000 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.

Sharpstar 94EDPH Triplet Apo
ZWO AM3
ASI 2600 MM PRO
ZWO 220MM+OAG-L
ASIair Plus
ZWO EAF Focuser
ZWO EFW Electronic Filter Whee 7x36"
Chroma H-alpha 3nm Bandpass 36 mm: 20×300″(1h 40') ISO100 -5°C
Chroma OIII 3nm Bandpass 36 mm: 20×300″(1h 40') ISO100 -5°C
Chroma SII 3nm Bandpass 36 mm: 20×300″(1h 40') ISO100 -5°C
Total integration 5h
Bortle sky 8
Pixinsight
https://www.astrobin.com/qhjn2h/