How long is stellar year on Mars?

687 Earth days

423 Earth days

183 Earth days

121 Earth days

The Martian year is almost twice longer than Earth's year.

Kevin Gill wikipedia → Mars

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Answers by country

Unknown

75%

16%

the United States

55%

32%

128

Austria

47%

38%

India

37%

34%

16%

10%

190

Switzerland

37%

45%

12%

Germany

33%

39%

17%

223

Pakistan

33%

Poland

29%

18%

22%

3493

the United Kingdom

29%

44%

20%

Australia

24%

56%

16%

Canada

18%

63%

18%

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