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New Dwarf Planet Named Eris
The newest addition to our solar system—formerly known as 2003 UB313 and Xena—now has an official name by Shmuel Ross and Chris Frantz Related Links Pluto Demoted! (from August 2006) A…How the Planets and Satellites Got Their Names
Source: The U.S. Geological SurveyMERCURY Named for the winged Roman god of travel because it appears to move so swiftly.VENUS Roman name for the goddess of love. This planet was considered…Ganymede, in astronomy
(Encyclopedia) GanymedeGanymedegănˈēmēdˌ [key], in astronomy, one of the moons, or natural satellites, of Jupiter; the largest natural satellite in the solar system, it is larger than the planet…Traoré, Moussa
(Encyclopedia) Traoré, Moussa, 1936–2020, Malian army officer and political leader. He served in the French army and, following independence in 1960, Mali's army, rising to the rank of lieutenant. In…score
(Encyclopedia) score, in musical notation, manuscript or printed music in which the various parts are placed one above the other so that notes that are to be played simultaneously are in vertical…retrograde motion
(Encyclopedia) retrograde motion, in astronomy, real or apparent movement of a planet, dwarf planet, moon, asteroid, or comet from east to west relative to the fixed stars. The most common direction…evening star
(Encyclopedia) evening star or morning star, planet that becomes visible in the western sky shortly after sunset or in the eastern sky shortly before sunrise. It can usually be seen in twilight, when…Ptolemaic system
(Encyclopedia) Ptolemaic systemPtolemaic systemtŏlˌəmāˈĭk [key], historically the most influential of the geocentric cosmological theories, i.e., theories that placed the earth motionless at the…Eris, in astronomy
(Encyclopedia) Eris, in astronomy, the largest known dwarf planet. Eris, whose highly eccentric elliptical orbit ranges from 38 AU to 97 AU and is inclined more than 44°, is the largest known object…Phoebe, in astronomy
(Encyclopedia) PhoebePhoebefēˈbē [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn IX (or S9), Phoebe is 137 mi (220 km) in diameter, orbits Saturn…Trending
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