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%

Austria

48%

36%

the United States

47%

38%

108

India

37%

34%

16%

10%

190

Switzerland

34%

47%

13%

Pakistan

33%

Germany

30%

41%

17%

208

Poland

29%

17%

22%

3378

the United Kingdom

24%

50%

20%

Australia

24%

56%

16%

Canada

18%

63%

18%

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