This is a 14-minute exposure of the Andromeda Galaxy, or Messier 31, taken using the MicroObservatory:

I processed this image using MaxIM DL and only the clear filter was available so this is a monochrome image. It’s a very good image, showing good detail in the galaxy using the free MicroObservatory telescopes.

You can download the FITS files for this observation, to try your hand at processing this image.