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Iapetus (/ aɪ ˈ æ p ə t ə s /) is the outermost of Saturn's large moons. With an estimated diameter of 1,469 km, it is the third-largest moon of Saturn and the eleventh-largest in the Solar System. Named after the Titan Iapetus, the moon was discovered in 1671 by Giovanni Domenico Cassini.
Asteroids, Comets & Meteors. Kuiper Belt. Discovery Giovanni Cassini discovered Iapetus on Oct. 25, 1671. However, to astronomers Iapetus appeared only as a dot whose brightness varied from brighter to fainter over the course of an orbit around Saturn.
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Iapetus, outermost of Saturn’s major regular moons, extraordinary because of its great contrast in surface brightness. It was discovered by the Italian-born French astronomer Gian Domenico Cassini in 1671 and named for one of the Titans of Greek mythology. Iapetus has a radius of 718 km (446 miles)
Iapetus Moon Facts. Iapetus is an oddly-coloured and shaped moon of Saturn. It is the third-largest moon in the system, and was discovered in 1671 by the astronomer Giovanni Domenico Cassini.
Iapetus as the progenitor of mankind has been equated with Japheth (יֶפֶת), the son of Noah, based on the similarity of their names and the tradition, reported by Josephus (Antiquities of the Jews), which made Japheth the ancestor of the "Japhetites", i.e. the Indo-European speaking peoples.
Jun 27, 2016 · Iapetus is one of four moons discovered by Giovanni Cassini in 1672. But the icy moon challenged the Italian astronomer. He first spotted it on the west side of the planet, but when he...
Sep 18, 2017 · Cassini bids farewell to Saturn’s yin-and-yang moon, Iapetus. This image is from the last set of observations Cassini made of this world of striking contrasts. The spacecraft helped scientists better understand Iapetus, solving a centuries-old mystery of why it should be bright on one side and dark on the other.
