(Français) M33, La Galaxie du Triangle

M33 is a nearby galaxy located at approximately 3 millions light-years in the constellation of the Triangulum. It is relatively large in the sky but faint. Unlike what is written in Wikipedia, it is not visible with the naked eyes. Or you must have an Excellent sky and a very very good vision. Even with a telescope, this one should be big enough to see more than a faint spot.

She is in our local group. She is one of our neighbor and in 2 or 3 billions years she will enter into collision with our galaxy and Andromeda Galaxy. Don’t worry it’s not dangerous.

55 exposures of 5 minutes. 6 darks, 8 flats.
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 : 9°C
Sensor temperature : 13 to 15°C
Humidity : 85%
Software : auto-guiding and acquisition with MaximDL, pre-processing with Iris, processing with photoshop.
Location : Pas du Serpaton, Gresse-en-Vercors, Isère, France.

Some clouds at beginning cause the rejection of the 8 first exposures. After 0h30 everything worked quiet well.