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16 Psyche (/ ˈ s aɪ k iː / SY-kee) is a large M-type asteroid, which was discovered by the Italian astronomer Annibale de Gasparis, on 17 March 1852 and named after the Greek goddess Psyche. [10] The prefix "16" signifies that it was the sixteenth minor planet in order of discovery.
Asteroid 16 Psyche is the heaviest known M-type asteroid, and may be an exposed iron core of a protoplanet, the remnant of a violent collision with another object that stripped off its mantle and crust. On January 4, 2017, the Psyche mission was selected for NASA's Discovery #14 mission. [9] [10]
With approximately as much iron as the world produces in 100,000 years, 16 Psyche is one such asteroid worth approximately $10 quintillion in metallic iron and nickel. [7] NASA is planning a mission for October 10, 2023 for the Psyche orbiter to launch and get to the asteroid by August 2029 to study.
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A 2013 IGN article and video listed 2b2t's spawn area as one of the six best things in Minecraft, describing the server as the "end boss" of Minecraft servers, a celebration of destruction and indifference. The article noted 2b2t's propensity towards griefing, the use of hacked clients, and player-built obscenities; and stated that players with ...
belt asteroid type C [83] Patientia 451: 112.9 ± 2.3: 10.9 ± 5.3: belt asteroid type C [122] · [123] Psyche 16: 112 ± 2: 26.2 ± 2.9: belt asteroid type M [83] Ceto 65489: 112 ± 5: 5.4 ± 0.4: extended centaur; binary [91] · [124] Herculina 532: 111.2 ± 2.4: belt asteroid type S [125] S/2007 (148780) 1 Altjira I: 110 +17 −62: secondary ...
The numbered-circle convention was quickly adopted by astronomers, and the next asteroid to be discovered (16 Psyche, in 1852) was the first to be designated in that way at the time of its discovery. However, Psyche was given an iconic symbol as well, as were a few other asteroids discovered over the next few years.
216 Kleopatra, with a mean diameter of 122 km, is the third largest M-type asteroid known after 16 Psyche and 22 Kalliope. [19] Radar delay-Doppler imaging, high-resolution telescopic images, and several stellar occultations show it to be a contact binary asteroid with a shape commonly referred to as a "dog-bone" or "dumbbell."