First Try of Astrophotography

26-27 Aug 2023, M31

Telescope: StellaLyra 8″ f/4 (800mm) Newtonian Reflector without coma corrector
Camera: Pentax K-1, ISO 3200
Mount: iOptron CEM40
No guide scope


This is the RAW of M31. No coma corrector, so the stars at the edge are in oval shape.


After some process


After 180 degree turn around.