M17 Nebula (Omega) and surroundings

 Posted: Oct 3rd, 2025
Technical Info
Telescope/Lens: Askar 107PHQ
Camera: QHY268M
Mount: ZWO AM5
Guide Scope: QHY OAG
Guide Camera: Touptek GPM462M
Software: Pixinsight, GraXpert, N.I.N.A, Photoshop
Accessories: askar 0.7x reducer
Exposure:
34 x 300" ISO/Gain: 56 - Ha
35 x 300" ISO/Gain: 56 - SII
36 x 300" ISO/Gain: 56 - OIII
Yellow zoneLight Pollution:
 Merjanovo Rostovskaya Oblast, Russia
 Sep 3rd, 2025
8 h 45 m
183
Shot at the end of summer - beginning of autumn 2025. 10 nights because it's the south, low and constant clouds on the horizon.
My own palette SH + O + O, calibration, star addition and subtraction in PixInsight, all post-processing in Photoshop, without paid neural network plugins. Denoise and background in GraXpert.

Discussion in the astrochat - https://t.me/dalniycosmos_chat , join us!
Resolution: 6176x3474 px
Scale: 14650 KB
Updated
  3 Oct, 2025
  8 h 45 m
Кропнутая версия области М17. Полная в соседнем кадре. Снято в конце лета - начале осени 2025ого. 10 ночей потому что юг, низко и постоянно облака на горизонте. Палитра своя SH + O + O, калибровк...
Current photo
  3 Oct, 2025
  8 h 45 m
Снято в конце лета - начале осени 2025ого. 10 ночей потому что юг, низко и постоянно облака на горизонте. Палитра своя SH + O + O, калибровка, сложение и вычитание звезд в пиксе, вся постобработка...
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Comments

The stars are slightly trailing at the corners. Have you tried adjusting the back focus a bit?
3 Oct, 2025 Reply
Here, it's more likely a sensor tilt issue, as the stars trail differently at various angles and not symmetrically.
3 Oct, 2025 Reply
Amateurs, are you all zooming in to the pixel level? Try capturing the southern sky better from our latitude yourselves!)
3 Oct, 2025 Reply

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