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Mainak Chakraborty

Location of Photo:

Kolkata, India

Date/Time of photo:

03.1.2022 at 8:30 pm


William Optics GT 81 IV , QHY 294C Pro ( - 15 degree celcius, Unity gain ), William Optics 50 mm Uniguidescope, ZWO ASI 290 MM Guidecam, Optolong L Enhance Filter


The Jellyfish Nebula – also known as IC 443 and Sh2-248 – is a supernova remnant located 5,000 light years away from Earth, in the constellation Gemini. The Jellyfish Nebula is too faint to be visible with the unaided eye.But it can be found near the foot of Castor. The two bright stars are known as Tejat, and Propus. These two stars can also be helpful to locate this nebula. I captured this nebula many times, after I started Astrophotography. But this is the first time I am sharing the image. Although it is a wide field image of this nebula to capture the full shape and the dusts , I have a wish to capture it in more detail with large refractor in future. Also i desire to add more data to this picture and process in Hubble palette too. 50x180” ( total 2 hrs 30 minutes on 19.12. 2021 ) 60x180” ( total 3 hrs on 3.1.2022 ) Total integration time 5 hrs 30 minutes 25 Darks 25 Flats for each day Bortle 4 Zone Softwares Used : EKOS for capture PHD2 for Guiding Affinity Photo for stacking & Post Processing Photoshop & Topaz Denoise AI for final representation