*Time required for the planet to return to the same position in the sky relative to the Sun as seen from Earth. mean distance from Sun227,943,824 km (1.5 AU) eccentricity of orbit0.093 inclination of orbit to ecliptic1.85° Martian year (sidereal period of revolution)686.98 Earth days ...
We’ve been talking about Mercury all month long, and we’ve been talking a lot about Mercury’s rotation rate. In some posts, I’ve told you that Mercury has a rotation rate equal to approximately 59 Earth days. In other posts, I said a day on Mercury is about 176 Earth days long...
Since the orbital motion of the Moon and the daily rotation rates are linked by the number of days in a lunar month, the relation between the length of the lunar month and the length of a year can reveal if the whole of the angular momentum of the Earth is being transferred to the ...
Deimos, being only just outside synchronous orbit—where the orbital period would match the planet's period of rotation—rises as expected in the east but very slowly. Despite the 30 hour orbit of Deimos, it takes 2.7 days to set in the west as it slowly falls behind the rotation of ...
400 km at apogee. And like most known satellites within our Solar System, the Moon's sidereal rotation period (27.32 days) is the same as its orbital period. This means that the Moon is tidally locked with Earth, with one side is constantly facing towards us while the other is facing ...
The Moon varies in orbit around Earth, going from 362,600 km at perigee to 405,400 km at apogee. And like most known satellites within our Solar System, the Moon’s sidereal rotation period (27.32 days) is the same as its orbital period. This means that the Moon is tidally locked with...
Because of the rotation period of Mars, the view of the planet changes slightly from night to night. Mars rotates in the same direction as Earth every 24 hours and 37 minutes, just a little longer than the rotation period of Earth. If you observe Mars with a correct view with north up...
are quite different. Compared to Earth, a year on Mars lasts almost twice as long – 686.98 Earth days. This is due to the fact that Mars is significantly farther from the Sun and its orbital period (the time it takes to orbit the Sun) is significantly greater than that of Earth’s....
Mean distance from sun: 228 million km; period of revolution around sun: 686.98 days; period of axial rotation: 24.6225 hours; diameter and mass: 53.2 and 10.7 per cent that of earth respectively 2. the alchemical name for iron Collins Discovery Encyclopedia, 1st edition © HarperCollins ...
volcanic activity and running surface water. The planet has two tiny satellites, Phobos and Deimos. Mean distance from sun: 228 million km; period of revolution around sun: 686.98 days; period of axial rotation: 24.6225 hours; diameter and mass: 53.2 and 10.7 per cent that of earth ...