Mars Rotation - HQ

Mars Rotation - High Quality Mars is the fourth planet from the Sun in the Solar System. The planet is named after Mars, the Roman god of war. It is also referred to as the "Red Planet" because of its reddish appearance, due to iron oxide prevalent on its surface. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the volcanoes, valleys, deserts and polar ice caps of Earth. Unlike the Earth, Mars is now a geologically inactive planet with no tectonic activity. It is the site of Olympus Mons, the highest known mountain in the Solar System, and of Valles Marineris, the largest canyon. The smooth Borealis basin in the northern hemisphere may be a giant impact feature covering 40% of the planet. Mars rotational period and seasonal cycles are likewise similar to those of Earth. Orbital characteristics (Epoch J2000) Aphelion 249,209,300 km (1.665 861 AU) Perihelion 206,669,000 km (1.381 497 AU) Semi-major axis 227,939,100 km (1.523 679 AU) Eccentricity 0.093 315 Orbital period 686.971 day 1.8808 Julian years 668.5991 sols Synodic period 779.96 day 2.135 Julian years Average orbital speed 24.077 km/s Inclination 1.850° to ecliptic 5.65° to Sun&equator 1.67° to invariable plane Longitude of ascending node 49.562° Argument of perihelion 286.537° Satellites 2 Physical characteristics Equatorial radius 3,396.2 ± 0.1 km (0.533 Earths) Polar radius 3,376.2 ± 0.1 km (0.531 Earths) Flattening 0.005...