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Mars has an orbit with a semimajor axis of 1.524 astronomical units (228 million km) (12.673 light minutes), and an eccentricity of 0.0934. [1] [2] The planet orbits the Sun in 687 days [3] and travels 9.55 AU in doing so, [4] making the average orbital speed 24 km/s.
Mars sky at sunset, as imaged by Mars Pathfinder (June, 1999). Mars sky at sunset, as imaged by the Spirit rover (May, 2005). Mars sky at sunset, as imaged by the Curiosity rover (February 2013; Sun simulated by artist). The seasonal lag on Mars is no more than a couple of days, [1] due to its lack of large bodies of
A simulation of a 4-satellite constellation in areostationary orbit . An areostationary orbit, areosynchronous equatorial orbit (AEO), or Mars geostationary orbit is a circular areosynchronous orbit (ASO) approximately 17,032 km (10,583 mi) in altitude above the Mars equator and following the direction of Mars's rotation.
Mars is the fourth planet from the Sun.The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". [22] [23] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.
If you catch yourself looking up at the night sky this evening, you might notice what looks like a bright star with an orange tint. That's actually the planet Mars. Here's HLN: 'The planet is ...
Most of the material orbits and rotates in one direction. This uniformity of motion is due to the collapse of a gas cloud. [1] The nature of the collapse is explained by conservation of angular momentum. In 2010 the discovery of several hot Jupiters with backward orbits called into question the theories about the formation of planetary systems. [2]
Mars spins a little more quickly each year, according to data collected by NASA’s now-retired InSight lander. ... The instruments were used to track Mars’ rotation during the mission’s first ...
J2000.0 equatorial coordinates approximating the galactic reference points [1] Right ascension: Declination: Constellation: North Pole +90° latitude 12 h 51.4 m +27.13° Coma Berenices (near 31 Com) South Pole −90° latitude 0 h 51.4 m: −27.13° Sculptor (near NGC 288) Center 0° longitude 17 h 45.6 m: −28.94° Sagittarius (in ...