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

56%

32%

134

Austria

47%

38%

India

37%

34%

16%

10%

191

Switzerland

37%

45%

12%

Germany

33%

39%

17%

226

Pakistan

33%

Poland

30%

29%

18%

21%

3543

the United Kingdom

29%

40%

25%

Australia

24%

56%

16%

Canada

18%

63%

18%

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