Anyway, all speak Italian, almost all Roman native do speak Roman, I'd say 30% English (good or awful), mainly older people may know (remember) Latin, not necause they're *so* old :) but because nowadays Latin is taught in secondary school only, and just some (Liceo).
Pluto's diameter is 2372 km and its mass is 1.31Ã10 22 kg, which is less than 17.82% of the Moon (less than 0.24% of Earth). Its surface area is 7013166500000000000â 1.665Ã107 km2, or roughly the same surface area as Russia.n 1978, the discovery of Pluto's moon Charon allowed the measurement of Pluto's mass for the first time: roughly 0.2% that of Earth, and far too small to account for the discrepancies in the orbit of Uranus. Subsequent searches for an alternative Planet X, notably by Robert Sutton Harrington, failed.
Details in the orbits of the outer moons reveal that Charon has approximately 12.18% of the mass of Pluto. This shows it to have a density of 1.702 Â± 0.021 g/cm 3, suggesting a composition of 55 Â± 5% rock to 45% ice, whereas Pluto is somewhat denser and about 70% rock.