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Swift is an impact crater on Mars's moon Deimos. It is about 3 km (1.9 mi) in diameter. [2] [3] Swift is named after Jonathan Swift, whose 1726 book Gulliver's Travels predicted the existence of two moons of Mars. [4] Swift is one of two named features on Deimos, the other being Voltaire.
Deimos (/ ˈ d aɪ m ə s /; systematic designation: Mars II) [11] is the smaller and outer of the two natural satellites of Mars, the other being Phobos. Deimos has a mean radius of 6.2 km (3.9 mi) and takes 30.3 hours to orbit Mars. [5] Deimos is 23,460 km (14,580 mi) from Mars, much farther than Mars's other moon, Phobos. [12]
Voltaire is an impact crater on Mars's moon Deimos and is approximately 3 km (1.9 mi) across. [2] [3] Voltaire crater is named after François-Marie Arouet, a French Enlightenment writer who was better known by the pen name Voltaire, who in his 1752 short story "Micromégas" predicted that Mars had two moons.
Unlike Deimos, Phobos is heavily cratered, [30] with one of the craters near the equator having a central peak despite the moon's small size. [31] The most prominent of these is the crater Stickney , a large impact crater some 9 km (5.6 mi) in diameter, which takes up a substantial proportion of the moon's surface area.
The motions of Phobos and Deimos would appear very different from that of Earth's Moon. Speedy Phobos rises in the west, sets in the east, and rises again in just eleven hours, while Deimos, being only just outside synchronous orbit, rises as expected in the east but very slowly. Despite its 30-hour orbit, it takes 2.7 days to set in the west ...
Markus Persson founded Mojang Studios in 2009.. Mojang Studios was founded by Markus Persson, a Swedish independent video game designer and programmer, in 2009. [3] [4] He had gained interest in video games at an early age, playing The Bard's Tale and several pirated games on his father's Commodore 128 home computer, and learned to programme at age eight with help from his sister.
Elecnor Deimos, a Spanish aerospace company; Deimos-1, an artificial Earth observation satellite; Deimos-2, an artificial Earth observation satellite; SpaceX Deimos, a floating Starship launch and landing platform; USS Deimos, a U.S. Navy ship name USS Deimos (AK-78), a ship in the US Navy in World War II
A transit of Deimos from Mars lasts a maximum of about two minutes, due to its relatively rapid orbital period of about 30.3 hours.. Because they orbit Mars in low-inclination equatorial orbits, the shadows of Phobos or Deimos projected onto the surface of Mars exhibit a seasonal variation in latitude.