Cosmic Window

IC 443 - The Jellyfish Nebula

Here’s my latest attempt at the Jellyfish Nebula, an supernova remnant in the constellation Gemini. It’s nearly 5,000 light years away and about 10 light years across. The SNR is actually only the “bulby” bit at the top of the picture. The other is an emission nebula in the background.

I’m still auditioning PixInsight, and finally feel like I’m getting a workflow that yields results. I wanted to attempt an HaRGB image with some data I acquired in dark skies in Colorado in late 2021. I had some 8 hours of usable data. The Ha data came from 3 hours I got from my backyard using the ALP-T dual narrowband filter.

I do plan to shoot this one again this year if I ever get clear skies… until then, I’m continuing my reprocessing mission!

Nerd Stuff:
William Optics Z73
QHYCCD 268C
Skywatcher EQ6-R Pro
Antlia ALP-T Dual Narrowband filter
Processed in PixInsight, Photoshop, with help from Deep Sky Stacker and Topaz DeNoise AI

Happy Thanksgiving 🦃
No, it’s not a turkey nebula. It’s the California Nebula from two nights ago. It’s been on my list of things to photograph, so I’m glad I could finally get a picture of it. It’s only about 3 hours worth of exposure so there’s some room for improvement. But I’ll take it for now!
I’ll post it on the site, www.Cosmicwindow.space soon with some more detail about the nebula and acquisition details!