Uranus a March 1782 treatise, Bode proposed "Uranus", the Latinised version of the Greek god of the sky, Ouranos. Bode argued that the name should follow the mythology so as not to stand out as different from the other planets, and that Uranus was an appropriate name as the father of the first generation of the Titans. He also noted that elegance of the name in that just as Saturn was the father of Jupiter, the new planet should be named after the father of Saturn. In 1789, Bode's Royal Academy colleague Martin Klaproth named his newly discovered element uranium in
Atmosphere of Uranus internal heat source was required to explain observed temperatures. No discrete features had been observed on Uranus prior to the "Voyager 2" visit in 1986. In January 1986, the "Voyager 2" spacecraft flew by Uranus at a minimal distance of 107,100 km providing the first close-up images and spectra of its atmosphere. They generally confirmed that the atmosphere was made of mainly hydrogen and helium with around 2% methane. The atmosphere appeared highly transparent and lacking thick stratospheric and tropospheric hazes. Only a limited number of discrete clouds were observed. In the 1990s and 2000s, observations by the Hubble Space