Pertaining to The Martian, what is the ratio of SOLs to Earth days?

Pertaining to The Martian, what is the ratio of SOLs to Earth days? - Person Holding A Green Plant

I didn't see an explanation in the movie. How many days pass on Earth when one SOL passes on Mars?

I heard a reference of two months passing, but I thought only (counts)....less than 50 SOLs had passed.



Best Answer

The physics of Mars in The Martian is identical to the actual physics of the planet, as such, we only need to know the actual length of a Martian sol (in hours/minutes) to know how it compares with an Earth day.

A Martian day is nearly identical to an Earth day. There's only a difference of about 2.7% between the two.

The average length of a Martian sidereal day is 24h 37m 22.663s (88,642.66300 seconds based on SI units), and the length of its solar day (often called a sol) is 24h 39m 35.244147s (88,775.244147 seconds). The corresponding values for Earth are 23h 56m 4.0916s and 24h 00m 00.002s, respectively. This yields a conversion factor of 1.02749125170 days/sol. Thus Mars' solar day is only about 2.7% longer than Earth's.

The number above you're interested in is the solar day - 24 hours, 39 minutes, 35 seconds.




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How many Earth days is a Martian sol?

While a year on Earth lasts 365 days, every Mars year lasts 668 sols (Mars days) \u2014 or 687 Earth days, as each sol lasts a little longer than an Earth day at 24 hours and 39 minutes.

How does a Martian sol compared to an Earth day?

Mars is a planet with a very similar daily cycle to the Earth. Its sidereal day is 24 hours, 37 minutes and 22 seconds, and its solar day 24 hours, 39 minutes and 35 seconds. A Martian day (referred to as \u201csol\u201d) is therefore approximately 40 minutes longer than a day on Earth.

How many hours are in a Martian day?

The Earth zips around the Sun at about 67,000 miles per hour, making a full revolution in about 365 days - one year on Earth. Mars is a little slower, and farther from the sun, so a full circuit takes 687 Earth days - or one Mars year.



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