International Astronomical Union/Related Articles
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- Astronomy : The study of objects and processes in the observable universe, e.g. stars, planets, comets or asteroids.
- Australia : Continent in the Southern Hemisphere and the federal parliamentary nation that occupies it.
- Beijing : Capital city of China (pop. 13,831,900).
- Brighton : English city on the south coast with a population of around 480,000.
- Ceres (dwarf planet) : The most massive body in the asteroid belt. Originally classified as a planet, it later became the number one asteroid; now a dwarf planet.
- Constellation : An officially recognised formation of stars, such as the Big Dipper or Orion.
- France : Western European republic (population c. 64.1 million; capital Paris) extending across Europe from the English Channel in the north-west to the Mediterranean in the south-east; bounded by Belgium, Luxembourg, Germany, Switzerland, Italy, Monaco, Andorra and Spain; founding member of the European Union. Colonial power in Southeast Asia until 1954.
- Light year : Distance that light travels in vacuum in one year; 9,460,730,472,580.800 km = 9.4607304 * 1012 km.
- Manchester : City and metropolitan borough of Greater Manchester, northwestern England, on the Irwell, Medlock, Irk, and Tib rivers.
- Mercury (planet) : The first planet from the Sun in our solar system; named after the Roman messenger of gods.
- Paris : Capital of France, population about 2,200,000.
- Planet : A cosmic body orbiting a star.
- Pluto (dwarf planet) : A dwarf planet beyond Neptune that, for many years, was officially considered a planet; named after the Roman god of the underworld.
- Solar system : The sun and the planets orbiting it.
- Uranus (planet) : The seventh planet from the Sun in our solar system; name after the Greek god of the sky.
- Venus (planet) : The second planet from the Sun in our solar system; named after the Roman goddess of love.