Explanation: In October of 1846, William Lassell was observing the newly discovered planet Neptune. He was attempting to confirm his observation, made just the previous week, that Neptune had a ring. But this time he discovered that Neptune had a satellite as well. Lassell soon proved that the ring was a product of his new telescope's distortion, but the satellite Triton remained. The above picture of Triton was taken in 1989 by the only spacecraft ever to pass Triton: Voyager 2. Voyager 2 found fascinating terrain, a thin atmosphere, and even evidence for ice volcanoes on this world of peculiar orbit and spin. Ironically, Voyager 2 also confirmed the existence of complete thin rings around Neptune - but these would have been quite invisible to Lassell!

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Triton - Neptun - KA Voyadzher Publikacii so slovami: Triton - Neptun - KA Voyadzher
Sm. takzhe: Okruzhennyi kol'cami ledyanoi gigant Neptun Polumesyacy Neptuna i Tritona Kogda Mars vstrechaetsya s Neptunom Dva chasa do Neptuna Proletaya okolo sputnika Neptuna Tritona Neptun ot Voyadzhera Despina, sputnik Neptuna Vse publikacii na tu zhe temu >>