SH2-298 NGC2359 Thor's Helmet

 Posted: Feb 5th, 2026
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NGC
IC
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Technical Info
Telescope/Lens: Askar 71F
Camera: ZWO ASI533MC Pro
Mount: JUWEI 14
Guide Scope: Askar 32 f4
Guide Camera: ZWO ASI120MM Mini
Software: Siril, Lightroom, StarNet++
Accessories: CAA, EAF, EFW, ASIAIR MINI, Askar Reducer x 0.75, Gemini PowerBox
Exposure:
23 x 300" ISO/Gain: 100 - Optolong L-eXtreme
Orange, Bortle 6 zone:
 Samara, Russia
 Feb 5th, 2026
1 h 55 m
139
Resolution: 2750x2247 px
Scale: 3684 KB
Had to cram everything onto the flat roof to at least somewhat dampen the convection from neighboring houses—it's painfully low. And a good chunk of the files went in the trash; I only stacked the more or less decent frames. I'll definitely try to get as many again if possible. A nice addition for the Sharpless catalog collection. Sensor temperature -32°C, ASIAIR processor 2.8°C, and outside it was -26°C. Removed a bit of the redness from the background.
Updated
  13 Feb, 2026
  3 h 35 m
This is not just a gas cloud, but a Wolf-Rayet bubble. At its center lies an extremely hot and massive star (WR 7), which is in the final stage of its evolution…
Current photo
  5 Feb, 2026
  1 h 55 m
Had to cram everything onto the flat roof to at least somewhat dampen the convection from neighboring houses—it's painfully low. And a good chunk of the files w…
  5 Feb, 2026
  1 h 55 m
Had to cram everything onto the flat roof to at least somewhat dampen the convection from neighboring houses—it's painfully low. And a good chunk of the files w…
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Comments

Yes, we need to add stacking. Otherwise, it's an interesting object.
7 Feb, 2026 Reply

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