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# International Astronomical Union

...s]] in the [[scattered disc]], when this new category was created by the [[International Astronomical Union|IAU]] in 2006.

...system/planetsf-20060824.html Honey, I Shrunk the Solar System] NASA. “The International Astronomical Union has decided that, to be called a planet, an object must have three traits.

...system/planetsf-20060824.html Honey, I Shrunk the Solar System] NASA. “The International Astronomical Union has decided that, to be called a planet, an object must have three traits.

...[[Kuiper belt]]. Therefore, in 2006 Pluto's status was reassigned by the [[International Astronomical Union]] to '[[dwarf planet]]' - something with enough [[mass]] to become [[sphere

...|year = 2001 | title = Working Group on Extrasolar Planets (WGESP) of the International Astronomical Union | work = IAU | url = http://www.dtm.ciw.edu/boss/definition.html | accessda ...uto_(dwarf_planet)|Pluto]] was considered a planet up until 2006, when the International Astronomical Union reclassified it as a [[Dwarf planet|dwarf planet]].

I thought that was the IAU (International Astronomical Union), which is on the list. Of course, a wag such as I might be tempted to say

...nts on the appropriate venue for the commemoration, to be sponsored by the International Astronomical Union, and on other logistical issues.<ref> Owen Gingerich, "The Copernican Quinq

...Planet Center] Smithsonian Astrophysical Observatory, Division III of the International Astronomical Union (IAU)</ref>

...ve from civilisations further west. Their boundaries were defined by the [[International Astronomical Union]] in 1925. The majority of them are ancient constellations, and have names

* [[International Astronomical Union]]

...isk from Th/Eu nucleocosmochronology: extended sample" (Proceedings of the International Astronomical Union (2005), 1: 485-486 Cambridge University Press)</ref>.

...e three features were named before the current system was adopted by the [[International Astronomical Union]], the body that oversees planetary nomenclature.<ref name=jpl-magellan>{{c

According to the International Astronomical Union (IAU), objects orbiting the Sun are divided into three classes: planets, dw <li>{{Note_label|A|a|none}}[[Capitalization]] of the name varies. The [[International Astronomical Union|IAU]], the authoritative body regarding astronomical nomenclature, specifie

...e was officially published and announced by the Minor Planet Center of the International Astronomical Union on either 9th May or 10th May 2001 (accounts differ) - a day or two before