XO-4 is a star located approximately 863 light-years away from Earth in the Lynx constellation . It has a magnitude of about 11 and cannot be seen with the naked eye but is visible through a small telescope . A search for a binary companion star using adaptive optics at MMT Observatory was negative.
4-587: The star XO-4 is named Koit . The name was selected in the NameExoWorlds campaign by Estonia , during the 100th anniversary of the IAU . Koit is Estonian for dawn , and was named for a character in a folk tale written by Friedrich Robert Faehlmann . One known exoplanet , XO-4b , which is classified as a hot jupiter , orbits XO-4. This exoplanet was discovered in 2008 by the XO Telescope project using
8-629: The transit method . It has been named Hämarik , meaning dusk , and referring to a character from the same Faehlmann story featuring Koit. This main-sequence-star-related article is a stub . You can help Misplaced Pages by expanding it . NameExoWorlds NameExoWorlds (also known as IAU NameExoWorlds ) is the name of various projects managed by the International Astronomical Union (I.A.U.) to encourage names to be submitted for astronomical objects , which would later be considered for official adoption by
12-459: The organization's hundredth anniversary, in a project officially called IAU100 NameExoWorlds, welcomed countries of the world to submit names for exoplanets and their host stars . A star with an exoplanet was assigned to each country, and members of the public submitted names for them. In August 2022, the third NameExoWorlds project was announced, which gave names to 20 exoplanets and their host stars, all of which are targets for observation by
16-437: The organization. The first such project (NameExoWorlds I), in 2015, regarded the naming of stars and exoplanets . 573,242 votes were submitted by members by the time the contest closed on October 31, 2015, and the names of 31 exoplanets and 14 stars were selected from these. Many of the names chosen were based on world history, mythology and literature. In June 2019, another such project (NameExoWorlds II), in celebration of
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