Coldest surface in the solar system 235 c why does

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Unformatted text preview: by lava, like the Moon’s maria, but lava was “molten ice” 30 Triton is geologically active; its surface is young and has relatively few impact craters. Dark streaks across Triton's south polar cap surface, believed to be dust deposits left by eruptions of nitrogen geysers Triton's western hemisphere consists of a strange series of fissures and depressions known as "cantaloupe terrain" Triton has a tenuous nitrogen atmosphere less than 1/70 000 the pressure of Earth's atmosphere at sea level. Coldest surface in the solar system: -235º C Why does Triton orbit Neptune backwards? ‣ Triton orbits Neptune backwards ‣ Suggests Neptune captured it ‣ Triton was probably part of a two-body object similar to the Pluto–Charon system ‣ The pair strayed too close to Neptune ‣ Companion escaped, but left Triton behind image courtesy: A Morbidelli Nature 441 162 Triton was captured but its companion escaped 31 Why do we think that Neptune captured Triton? It orbits o...
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This note was uploaded on 10/23/2013 for the course ASTR 100 taught by Professor Dunne during the Fall '12 term at University of Illinois, Urbana Champaign.

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