Planet Mars – October 2020


Mars, mythical planet if there is one, presents seasonal variations on its surface because its axis of rotation is tilted, like that of the Earth. Its northern and southern hemispheres are in turn exposed to the Sun during its Martian year twice as long as ours (687 days). This causes its polar caps to melt on the hemisphere exposed to the Sun (the south, below in this photo) and reform in the next winter season.

Technical details:

Telescope: Celestron Edge HD14 and 2x  multiplicateur de focale 2x  Powermate lens (focal length: 8,200 mm)
Camera: ZWO ASI 174 MC
Exposure: 4-minute video capture at 132 frames per second (31,800 frames) with FireCapture from which 3,500 were selected and stacked with AutoStakkert
Place: Laval, Qc
Date: October 30, 2020