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1 day ago · Huygens first "published" his discovery as an anagram, sent out on 13 June 1655; later published in pamphlet form as De Saturni luna Observatio Nova and in full in Systema Saturnium (July 1659). 1670s o: 25 October 1671 p: 1673 Iapetus: Saturn VIII Saturn III (1673–1684), Saturn V (1686–1789), Saturn VII (1789–1848) Cassini
1 day ago · Pluto ( minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most- massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume, by a small margin, but is less massive than Eris.
