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Proper names of planetary systems often follow common themes – for example, the planets of the star Copernicus are named after European astronomers. Proper names for planets outside of the Solar System – known as exoplanets – are chosen by the International Astronomical Union (IAU) through public naming contests known as NameExoWorlds.
Name Temperature Mass (M ⊕ or M J) Notes References OGLE-2005-BLG-390Lb-223 °C (50 K) 5.5 M 🜨 The coldest known exoplanet, with a temperature lower than the melting points of oxygen and nitrogen. [a] [4] OGLE-2005-BLG-071L b-218 °C: 3.8 M J [5] PSR B1620-26 b-201.2 °C: 2.5 M J: One of the oldest exoplanets known, with an age of 12.7 ...
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
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This is a list of fictional galactic communities who are space-faring, in contact with one or more space-faring civilizations or are part of a larger government, coalition, republic, organization or alliance of two or more separate space-faring civilizations.
Many of the names chosen were based on world history, mythology and literature. [3] In June 2019, another such project (NameExoWorlds II), in celebration of the organization's hundredth anniversary, in a project officially called IAU100 NameExoWorlds, [ 4 ] [ 5 ] welcomed countries of the world to submit names for exoplanets and their host stars .
This is a partial list of named minor planets, containing all those starting with the letter S, as of 1 July 2024. It is ordered in a case-insensitive, alphabetical manner and contains a total of 2,306 entries. Grey minor planets have no article and redirect to the list of minor planets instead (see List of minor planets § Main index).
In astronomy, star names, in contrast to star designations, are proper names of stars that have emerged from usage in pre-modern astronomical traditions. Lists of these names appear in the following articles: List of Arabic star names; List of Chinese star names; List of proper names of stars: traditional proper names in modern usage around ...