The IAU frequently receives requests from individuals who want to buy stars or name stars after other persons. Some commercial enterprises purport to offer such services for a fee. However, such "names" have no formal or official validity whatever: A few bright stars have ancient, traditional Arabic names, but otherwise stars have just catalogue numbers and positions on the sky. Similar rules on "buying" names apply to star clusters and galaxies as well. For bodies in the Solar System , special procedures for assigning official names apply (see the IAU theme "Naming Astronomical Objects"), but in no case are commercial transactions involved
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Thus, like true love and many other of the best things in human life, the beauty of the night sky is not for sale, but is free for all to enjoy. True, the 'gift' of a star may open someone's eyes to the beauty of the night sky. This is indeed a worthy goal, but it does not justify deceiving people into believing that real star names can be bought like any other commodity. Despite some misleading hype several companies compete in this business, both nationally and internationally. And already in our own Milky Way there may be millions of stars with planets whose inhabitants have equal or better rights than we to name 'their' star, just as humans have done with the Sun (which of course itself has different names in different languages).