As Mars orbits the Sun, it completes one rotation every 24.6 hours, which is very similar to one day on Earth (23.9 hours). Martian days are called sols – short for "solar day." A year on Mars lasts 669.6 sols, which is the same as 687 Earth days.

9 1

15 2

8 0

21 1

2 0

32 2

21 2

31 2

14 2

15 1

39 2

8 0

1 0

23 3

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14 1