text: High-resolution UV images of this body in 1995 by the Hubble space telescope showed a dark-spot on its surface that was named after its discoverer.
full_question: High-resolution UV images of this body in 1995 by the Hubble space telescope showed a dark-spot on its surface that was named after its discoverer. The surface composition of this body consists of a significant amount of hydrated minerals, as well as iron-rich phyllosilicate clays and carbonates. It's not Uranus, but this object's existence was predicted by the Titius-Bode law, though that law was disproven by the discovery of Neptune in 1846. In Spring 2015, Dawn is expected to enter an orbit around this object after a year surveying Vesta. First thought to have been a comet by Giuseppe Piazzi in 1801, this celestial body is now classified as the smallest member of a group with constituents Haumea, Eris and Pluto. For 10 points, identify this dwarf planet of the asteroid belt.
first_sentence: High-resolution UV images of this body in 1995 by the Hubble space telescope showed a dark-spot on its surface that was named after its discoverer.
raw_answer: 1 Ceres