Its apparent size in the sky is large like six full moon. There is also its satellites galaxies : M32, the smallest and closest to M31 and M110 on bottom-right of the image. The periphery of the galaxy is composed by blue young star and closer to the core the yellow star are older.
31 exposures of 1 minute for the heart and 46 exposures of 5 minutes done in two nights.
Camera : Canon EOS 1000D unfiltered
Telescope : Takahashi FSQ-106ED refractor.
Mount : Takahashi EM-200 USD3.
Guiding : Orion Starshoot Autoguider on a William Optic Zenithstar 66SD refractor.
Outside temperature : 10°C
Sensor temperature : 13°C
Software : auto-guiding and acquisition with MaximDL, pre-processing with Iris, processing with photoshop.
Location : L'Epine, Hautes-Alpes, France