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矮行星
  ai2 hang4 sing1   jyutping
  ai3 xing2 xing1   pinyin
dwarf planet — a celestial body which orbits round a star (e.g. the Sun in our Solar System), is not a satellite of a planet, but has not "cleared the neighbourhood" around its orbit.

The term "pluton" is also used, although strictly, it is a subset of "dwarf planet".

Pluto was demoted in August 2006 at the International Astronomical Union 26th General Assembly in Prague, Czech Republic to "dwarf planet" status because of the last criterion (sometimes cuts into Neptune's orbit)


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As defined by the International Astronomical Union on August 24, 2006

IAU site:
[www.iau.org]

Wikipedia site: [en.wikipedia.org]
Level: 3
矮行星

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 ai2  ai3  -  short (height)
 haang4 hang4 hong4 hang6  xing2 hang2  -  walk; travel; profession; business line
 sing1  xing1  -  star
This word was added by tym on 25th Aug 2006
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CantoDict v1.3.13 is a collaborative Chinese Dictionary project started in November 2003. Entries are added and mistakes corrected by a team of kind volunteers from around the world.
Copyright Adam Sheik 2003-2008.