Eris


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Eris

(ē`rĭs), in Greek religion, goddess of strife. Angered at not being invited to the wedding of Peleus and Thetis, she threw the apple of discord among the wedding guests (see ParisParis
or Alexander,
in Greek mythology, son of Priam and Hecuba and brother of Hector. Because it was prophesied that he would cause the destruction of Troy, Paris was abandoned on Mt. Ida, but there he was raised by shepherds and loved by the nymph Oenone.
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, in Greek mythology).

Eris,

in astronomy, the largest known dwarf planetdwarf planet,
a nonluminous body of rock or gas that orbits the sun and has a rounded shape due to its gravity. Unlike a planet, a dwarf planet is not capable of clearing its orbit of smaller objects by collision, capture, or other means.
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. Eris, whose highly eccentric elliptical orbit ranges from 38 AU to 97 AU and is inclined more than 44°, is the largest known object of the Kuiper belt (see cometcomet
[Gr.,=longhaired], a small celestial body consisting mostly of dust and gases that moves in an elongated elliptical or nearly parabolic orbit around the sun or another star. Comets visible from the earth can be seen for periods ranging from a few days to several months.
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), with a diameter (1,445 mi/2,317 km) slightly larger than that of Pluto. Taking 560 earth years to circle the sun, Eris is believed to be composed of rock and ice. At aphelion (the most distant point from the sun in Eris's orbit), where the temperature is −405°F; (−243°C;), Eris's surface is covered with highly reflective frozen methane, which forms its atmosphere when it is closer to the sun and the surface temperature is warmer (−360°F;/−218°C;). Eris was discovered on Jan. 5, 2005, by astronomers Mike Brown, Chad Trujillo, and David Rabinowitz, using computer analysis of images taken two years earlier in a survey of the Kuiper belt. It was named for the Greek goddess of strife because its discovery was a catalyst for the reclassification of PlutoPluto,
in astronomy, a dwarf planet and the first Kuiper belt, or transneptunian, object (see comet) to be discovered (1930) by astronomers. Pluto has an elliptical orbit usually lying beyond that of Neptune.
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 as a dwarf planet. Eris is known to have one natural satellite, Dysnomia, named for the daughter of the goddess Eris; the moon is estimated to have a diameter about an eighth that of Eris. Eris and its moon were nicknamed Xena and Gabrielle, respectively, before they were officially named.

Eris

goddess of discord; threw apple of discord among Peleus’s wedding guests. [Gk. Myth.: Howe, 95]
See: Discord

Eris

/e'ris/ The Greek goddess of Chaos, Discord, Confusion, and Things You Know Not Of; her name was latinised to Discordia and she was worshiped by that name in Rome. Not a very friendly deity in the Classical original, she was reinvented as a more benign personification of creative anarchy starting in 1959 by the adherents of Discordianism and has since been a semi-serious subject of veneration in several "fringe" cultures, including hackerdom.

See Church of the SubGenius.
References in periodicals archive ?
Our unique understanding of derivative clearing environments, changing regulations and the Eris Exchange product gives us the ability to ensure firms' clearing strategies are efficient, transparent and compliant under new laws slated to become effective March 11, 2013," says Jim Bennett, managing director at Sapient Global Markets.
ICE Eris interest rate futures benefit from margin offsets with ICEs extensive interest rate product range which provides a deep pool of liquidity.
Pluto, Eris and Makemake are among the larger examples of the numerous icy bodies orbiting far away from our Sun.
The partners are also having strategy to develop new proprietary products and indexes covering all of the asset types and augment the distribution of the interest-rate swap futures and related market data of Eris.
Morgan Stanley said it has initiated its integration with the Eris SwapBook electronic trading platform and will commence providing electronic and block trade liquidity for both Eris Standards and Eris Flexes in early 2013.
While earlier observations using other methods suggested that Eris was probably about 25percent larger than Pluto with an estimated diameter of 3000 kilometres, the new study proves that the two objects are essentially the same size.
Mike Brown (Caltech), who headed the team that discovered Eris in 2005, and others took images with the Hubble Space Telescope that year indicating a diameter of 2,400 km, 5% larger than Pluto.
Verizon introduced the HTC Droid Eris last week, the same day as the Motorola Droid and it's getting good reviews so far.
The exuberant color illustrations by award-winning artist Eris Klein perfectly complement the happy moral of this meaningful book about finding happiness within oneself, rather than by craving candy, toys, or video games.
14 that the body, which had provisionally been called UB 313 and nicknamed Xena, would now be officially called Eris, after the Greek goddess of discord and strife.
McGregor's character, known as The Eye, follows Judd's Joanna Eris, a woman of many identities, on a killing spree across America.
And Korkut Eris, a 40-year-old Turkish taxi driver, of Holloway, North London, was jailed for nine years.