Astronomers began

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• Astronomers Reclassify Pluto as a Dwarf Planet — ▪ 2007  “What s in a name? That which we call a rose by any other word would smell as sweet.” These lines, spoken about Romeo by Shakespeare s Juliet, encapsulated the debate that peaked in 2006 over the meaning of the word planet. The original… …   Universalium

• Orange County Astronomers — (OCA) started life in the late 1960s when a small group of intrepid amateur astronomers got together to form a club. Those were the days when an amateur built his own telescope, usually a refractor, or a Newtonian. It was a laborious process of… …   Wikipedia

• Confederation of Indian Amateur Astronomers — The Confederation of Indian Amateur Astronomers (CIAA) is a national level organisation of amateur astronomers in India that convenes a national meeting of members every year, and coordinates the activities of amateur astronomers throughout the… …   Wikipedia

• National Australian Convention of Amateur Astronomers — The National Australian Convention of Amateur Astronomers (NACAA) is a biennial national forum for amateur astronomy in Australia. In 1966 two enthusiastic amateur astronomical groups, the James Cook Astronomers Club and the Canberra Astronomical …   Wikipedia

• Mayan Astronomers — City Mexico City, Mexico League Liga Mexicana Élite Founded 2010 Head coach Diego de la Garma …   Wikipedia

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• History of astronomy — History of science …   Wikipedia

• Babylonian astronomy — According to Asger Aaboe, the origins of Western astronomy can be found in Mesopotamia, and all Western efforts in the exact sciences are descendants in direct line from the work of the late Babylonian astronomers.[1] Our knowledge of Sumerian… …   Wikipedia

• IAU definition of planet — This article is about the formal definition established in 2006. For prior usage, see Definition of planet. The definition of planet set in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a… …   Wikipedia

• moon — mooner, n. moonless, adj. /moohn/, n. 1. the earth s natural satellite, orbiting the earth at a mean distance of 238,857 miles (384,393 km) and having a diameter of 2160 miles (3476 km). 2. this body during a particular lunar month, or during a… …   Universalium

• Moon — /moohn/, n. Sun Myung /sun myung/, born 1920, Korean religious leader: founder of the Unification Church. * * * Sole natural satellite of Earth, which it orbits from west to east at a mean distance of about 238,900 mi (384,400 km). It is less… …   Universalium