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22 Kalliope (/ k ə ˈ l aɪ. ə p i /; kə-LY-ə-pee) is a large M-type asteroid from the asteroid belt discovered by J. R. Hind on 16 November 1852. It is named after Calliope , the Greek Muse of epic poetry .
Linus, formal designation (22) Kalliope I Linus, is an asteroid moon that orbits the large M-type asteroid 22 Kalliope. It was discovered on August 29, 2001, by astronomers Jean-Luc Margot and Michael E. Brown with the Keck telescope, in Hawaii. Another team also detected the moon with the Canada-France-Hawaii Telescope on September 2, 2001.
Several theories have been posited to explain the formation of binary-asteroid systems. Many systems have significant macro-porosity (a "rubble-pile" interior).The satellites orbiting large main-belt asteroids such as 22 Kalliope, 45 Eugenia or 87 Sylvia may have formed by disruption of a parent body after impact or fission after an oblique impact.
From planetary meet-ups to the first total lunar eclipse in three years, here are the top astronomy events to look for throughout 2025: Stellar views of Mars will greet stargazers in January as ...
22 Kalliope is the second largest M-type asteroid with a mean diameter of 150 km. [15] A single moon, named Linus, was discovered in 2001 [29] and allows for an accurate mass estimate. Unlike most of the M-type asteroids, Kalliope's radar albedo is 0.15, similar to the S- and C-type asteroids, [ 5 ] and does not suggest an enrichment of metal ...
In Greek mythology, Calliope (/ k ə ˈ l aɪ. ə p i / kə-LY-ə-pee; Ancient Greek: Καλλιόπη, romanized: Kalliópē, lit. 'beautiful-voiced') is the Muse who presides over eloquence and epic poetry; so called from the ecstatic harmony of her voice.
Coordinate systems in astronomy can specify an object's relative position in three-dimensional space or plot merely by its direction on a celestial sphere, if the object's distance is unknown or trivial. Spherical coordinates, projected on the celestial sphere, are analogous to the geographic coordinate system used on the surface of Earth.
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