Uranos has one further, much later claim to fame that has nothing to do with the Theogony: he is the only one of the classical planets in the modern solar system named for a Greek god rather than his Roman counterpart. When William Herschel identified a new planet in 1781, he proposed naming it Georgium Sidus, George's Star, in honor of his patron King George III of Britain, a choice that found little favor outside Britain itself.
The German astronomer Johann Elert Bode argued instead for continuing the mythological pattern set by Mercury, Venus, Mars, Jupiter and Saturn, and proposed Uranus specifically because, in the genealogy set out by Hesiod, Uranos is the father of Kronos (Saturn) and so the next name back in the family line beyond Saturn, matching the new planet's position the next step out from Saturn's orbit. Bode's name gradually won out over the following decades, and it stuck, uniquely, in its Greek rather than Latinized Roman form, so that Uranos alone among the planetary gods gave his original name directly to the modern sky rather than through his Roman equivalent Caelus. The chemical element uranium extends the same naming logic one step further: the German chemist Martin Heinrich Klaproth named it for the planet in 1789, only eight years after Herschel's discovery, though what Klaproth had isolated was an oxide of the new element rather than the pure metal, which the French chemist Eugene-Melchior Peligot did not manage until 1841. An ancient sky god's name is now attached equally to a distant world and to a radioactive metal mined from the earth he once, according to Hesiod, imprisoned his own children within.