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The average length of a Martian sidereal day is 24 h 37 m 22.663 s (88,642.663 seconds based on SI units), and the length of its solar day is 24 h 39 m 35.244 s (88,775.244 seconds). [3]
The average duration of the day-night cycle on Mars — i.e., a Martian day — is 24 hours, 39 minutes and 35.244 seconds, [3] equivalent to 1.02749125 Earth days. [4] The sidereal rotational period of Mars—its rotation compared to the fixed stars—is 24 hours, 37 minutes and 22.66 seconds. [4]
The basic time periods from which the calendar is constructed are the Martian solar day (sometimes called a sol) and the Martian vernal equinox year.The sol is 39 minutes 35.244 seconds longer than the Terrestrial solar day, and the Martian vernal equinox year is 668.5907 sols in length (which corresponds to 686.9711 days on Earth).
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Mars's average distance from the Sun is roughly 230 million km (143 million mi), and its orbital period is 687 (Earth) days. The solar day (or sol) on Mars is only slightly longer than an Earth day: 24 hours, 39 minutes, and 35.244 seconds. [185] A Martian year is equal to 1.8809 Earth years, or 1 year, 320 days, and 18.2 hours. [2]
Earth's rotation imaged by Deep Space Climate Observatory, ... Mars: 1.02595675 days [3] 1 d 0 h 37 m 22.663 s: 1.02749125 ... Day length fluctuations;
Mars will seem to disappear behind the full wolf moon Monday for many sky-gazers. ... January’s full moon also ties in with the beginning of the Hindu pilgrimage and 44-day festival of Prayag ...
Due to Mars's 24.5 hour long day, RIMFAX operations are shared between centers at University of California, Los Angeles (UCLA) and the University of Oslo (UiO), swapping every two weeks. [5] The RIMFAX data is archived by NASA's Planetary Data System. [6]