Leo Triplet (M 65, M 66, NGC 3628)

 Posted: Apr 5th, 2025
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Technical Info
Telescope/Lens: Askar SQA 85 мм f/4.8
Camera: ZWO ASI 183 MC Pro
Mount: Ioptron HAE 29 C
Guide Scope: Askar 52 мм F4
Guide Camera: ZWO ASI 120 MM mini
Software: SharpCap 4.0, DSS, Siril, GraXpert
Exposure:
25 x 300" ISO/Gain: 120
Orange, Bortle 6 zone:
 Petushki Vladimirskaya Oblast, Russia
 Apr 2nd, 2025
2 h 5 m
1100
Resolution: 2759x2084 px
Scale: 1716 KB
I continue testing the wonderful Askar SQA 85 mm f/4.8 scope. This time I used the ZWO ASI 183 MC camera with a small pixel of 2.4 µm. The angular resolution became smaller, and the galaxies themselves larger and more detailed. For a short-focal-length telescope (408 mm), it seems to me that a small pixel has an advantage, although of course the ASI 183 MC camera itself is clearly outdated. Before this, I shot with the ZWO ASI 2600 MC (pixel 3.76 µm).
Updated
  4 May, 2025
  2 h 5 m
Processed in PixInsight by astrophotographer Anton (user Anth https://www.deepskyhosting.com/id1059), for which many thanks to him. What can you say? PixInsight…
Current photo
  5 Apr, 2025
  2 h 5 m
I continue testing the wonderful Askar SQA 85 mm f/4.8 scope. This time I used the ZWO ASI 183 MC camera with a small pixel of 2.4 µm. The angular resolution be…
  20 Mar, 2025
  2 h 42 m
M 65 (NGC 3623) Distance 41 million light-years. Diameter 90,000 light-years. Angular size 9.8'x2.9' M 66 (NGC 3627) Distance 35 million light-years. Diameter 1…
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