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Habitability of F-type main-sequence star systems
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<p><a href="/facts/F-type_main-sequence_star/e8xcfI01">F-type main-sequence stars</a> are thought to be the hottest and more massive stars capable of hosting a planet with extraterrestrial life. Compared to cooler main-sequence stars of <a href="/facts/G-type_main-sequence_star/8zjE512K">G</a>, <a href="/facts/K-type_main-sequence_star/loWHS8PD">K</a> and <a href="/facts/M-type_main-sequence_star/56CMQcF0">M</a> types, F stars have shorter lifetimes and higher levels of ultraviolet radiation, which can hinder the development of life. Stars hotter than F stars have shorter lifetimes and higher UV incidence, which make life development not possible. </p>