![]() ![]() However, the names of the planets have been included in wording for IAU resolutions multiple times since the IAU's founding and these names can be considered formally adopted by the IAU membership. scientifically, in professional and amateur astronomy literature, in nautical almanacs, etc.). The names of the major planets were already in common use when the IAU formed in 1919 (e.g. The eight major planets in our Solar System and Earth's satellite have official IAU names. Hence, IAU recommendations should rest on well-established scientific facts and have a broad consensus in the community concerned. Such decisions and recommendations are not enforceable by any national or international law rather they establish conventions that are meant to help our understanding of astronomical objects and processes. But from time to time the IAU takes decisions and makes recommendations on issues concerning astronomical matters affecting other sciences or the public. The various IAU Working Groups normally handle this process, and their decisions primarily affect the professional astronomers. The IAU has been the arbiter of planetary and satellite nomenclature since its inception in 1919 (also see Resolution 13 of the Fourth United Nations Conference on the Standardization of Geographical Names, held in Geneva in 1982). Naming of Solar System Objects and Features List of known names of Solar System objects, exoplanets, stars and stellar streams (14 August 2022). The purpose of nomenclature is to provide simple, clear, unambiguous names for features. Sometimes multi-word names are discouraged for this reason. If a name is difficult to spell or pronounce, it may not be the best choice for use on maps and in presentations. While the IAU is willing to help to achieve a minimum degree of orthographic consistency as regards astronomical terms, it cannot undertake to do so for all languages, nor is it in the power of the IAU to enforce the application of any such conventions. It is emphasized, however, that language conventions are the responsibility of individual nations or groups of nations. "The Earth's equator" and "Earth is a planet in the Solar System" are examples of correct spelling according to these rules. Union, volume 20B, 1989 Chapter 8, page S30 – PDF file) e.g., Earth, Sun, Moon, etc. The IAU formally recommends that the initial letters of the names of individual astronomical objects should be printed as capitals (see the IAU Style Manual, Trans. Questions have been asked about the proper English spelling of names of astronomical objects, especially as regards capitalization of such names. ![]() Naming Objects Outside the Solar System.Satellites of Planets in the Solar System. ![]() ![]()
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