How long is a day on Deimos?
About 30.3 Earth hours ยท orbits Mars every 1.3 days
Mars's tiny outer moon that rises in the EAST and crosses the sky slowly over 2.7 days
While Phobos zips overhead 3 times per day rising in the west, Deimos creeps across the sky taking 2.7 Martian days to cross from east to west - like a very slow Moon!