NGC 2244 "Rosette"

 Posted: Feb 21st, 2025
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NGC
IC
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Technical Info
Telescope/Lens: Объектив TTArtisan 500мм 6.3ED
Camera: ZWO ASI2600 Air
Mount: iOptron HEM15
Guide Scope: встроенный датчик
Guide Camera: SC2210
Software: SiriL, StarNet++, GraXpert
Accessories: ZWO ASIAir в камере, ZWO EAF
Exposure:
67 x 180" ISO/Gain: 101 - фильтр Svbony SV220
Red, Bortle 7 zone:
 Toksovo, Russia
 Feb 19th, 2025
3 h 21 m
871
Resolution: 3727x4037 px
Scale: 8250 KB
Added exposure time to the Rosette.
Used a cheat technique—stars replaced with synthetic circles from StarNet. Stretched the histogram less.
Bright spots from coma remained.
But they remained!
Updated
  24 Feb, 2025
  59 m
First light with the setup, only the mount has been tested before. The camera is attached in the focuser with just one screw and no guide pins, causing a clear…
Current photo
  21 Feb, 2025
  3 h 21 m
Added exposure time to the Rosette. Used a cheat technique—stars replaced with synthetic circles from StarNet. Stretched the histogram less. Bright spots from c…
  17 Feb, 2025
  2 h 24 m
I modified the focuser. Instead of a bunch of clamps, tubes, and brackets—just one 3D-printed part and a string (strings are everything!). I had to use a motor…
  8 Feb, 2025
  48 m
Suddenly, the sky cleared up. I took out the TTArtisan 500mm 6.3ED to test it. In the cold (around -10°C), the autofocus motor struggled to turn the focus ring—…
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