The Jellyfish Nebula (catalogued as IC 433 and Sharpless 248) is a galactic supernova remnant in the constellation Gemini, located near the star Eta Geminorum.

IC 433 Jellyfish Nebula (3 hours exposure) from SCO
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The Jellyfish Nebula (catalogued as IC 433 and Sharpless 248) is a galactic supernova remnant in the constellation Gemini, 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. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.

A total of 3 hours exposure.

Exposure9@1200 sec
ISO800
CameraNikon Z7 [8856 x 5504]
OpticsSkywatcher Esprit 120mm Refractor
FilterRadian Triad Ultra Quad-Band Narrowband Filter
GuidingPhd2 using a ZWO 224MC on an Orion 60x240mm Guide scope
ControllerImages taken using Kstars on an Odroid-N2 (Raspberry Pi clone)
LocationSt. Croix Observatory, Nova Scotia.
Date2021-03-16
PixInsight Processing
WeightedBatchPreprocessing Script
Dynamic Crop
Automatic Background Extractor
MultiscaleLinearTransform
HistogramTransform
CurvesTransformation
LocalHistogramEquilization
Further tweaking for colour in Lightroom