M31 Andromeda Galaxy processing using Siril

[PETER LOO]

Yesterday evening sg sky was opened. Captured M31 with TS-65/420mm scope, Canon 550D cam. Shooting data: ISO 400, 60s X 111. Calibrated, registered and stacked in Siril, performed Histogram transformation, color calibration (photometric), noise reduction and background extraction.

[cytan299]

Hi Peter,
Hmmm, doesn't look stretched to me ...

cytan

[PETER LOO]

Yah, cytan San, i'm still trying to figure out how to use the Siril's generalised hyperbolic stretch to produce the s curve shape, a bit confused.

[PETER LOO]

Can't stretch too far it seems, the core is getting too bright, also data acquisition time is very insufficient (less than 2 hours) partly due to mount meridian flip. n.b. forgot to mentioned 2" Orion skyglow filter has been used.

[PETER LOO]

And finally

[bernardchew]

Can't stretch too far it seems, the core is getting too bright, also data acquisition time is very insufficient (less than 2 hours) partly due to mount meridian flip. n.b. forgot to mentioned 2" Orion skyglow filter has been used.

Nice. Dust lanes can be clearly seen.