The Rosette Nebula (NGC 2238) in an HSO palette

 Posted: Feb 1st, 2026
Technical Info
Telescope/Lens: Askar SQA 85 мм f/4.8
Camera: ZWO ASI 2600 MC
Mount: Ioptron HAE 29 C
Guide Scope: Askar 52 мм F4
Guide Camera: ZWO ASI 120 MM mini
Software: SharpCap 4.0, DSS, Siril, Adobe Photoshop
Exposure:
64 x 180" ISO/Gain: 100
Orange, Bortle 6 zone:
 Petushki Vladimirskaya Oblast, Russia
 Mar 17th, 2025
3 h 12 m
46
Resolution: 4844x3643 px
Scale: 2974 KB
Continuing to explore all the capabilities of the new Siril scripts. Reprocessing the Rosette Nebula in the HSO palette.
Current photo Updated
  Yesterday, at 22:53
  3 h 12 m
Continuing to explore all the capabilities of the new Siril scripts. Reprocessing the Rosette Nebula in the HSO palette.
  19 Mar, 2025
  3 h 12 m
Continuing to test the wonderful astrograph Askar SQA 85. Indeed, the field is almost perfectly flat across the entire frame, stars at the edges are not stretch…
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