Triton is the largest natural satellite of the planet Neptune. It is the only moon of Neptune massive enough to be rounded under its own gravity and hosts a thin, hazy atmosphere. Triton orbits Neptune in a retrograde orbit—revolving in the opposite direction to the parent planet's rotation—the only large moon in the Solar System to do so.

2024年11月3日 · Triton is the largest of Neptune's 13 moons. It is unusual because it is the only large moon in our solar system that orbits in the opposite direction of its planet's rotation―a retrograde orbit. Scientists think Triton is a Kuiper Belt Object captured by Neptune's gravity millions of years ago.

Triton is the largest of Neptune's 13 moons. It is unusual because it is the only large moon in our solar system that orbits in the opposite direction of its planet's rotation―a retrograde orbit. Scientists think Triton is a Kuiper Belt Object captured by Neptune's gravity millions of years ago.

2018年1月27日 · Triton is the largest of Neptune's moons. Discovered in 1846 by British astronomer William Lassell — just weeks after Neptune itself was found — the moon showed some strange characteristics...

2025年4月3日 · Triton, largest of Neptune’s moons, whose unusual orbital characteristics suggest that it formed elsewhere in the solar system and was later captured by Neptune. It was discovered by the English astronomer William Lassell in October 1846, only a few weeks after the discovery of Neptune itself.

Triton is the largest of Neptune’s 14 known moons. The icy world is likely a Kuiper Belt Object that was captured by Neptune’s gravity. Triton may have a liquid water ocean beneath its surface, but a new mission is needed to investigate further.

2023年9月15日 · The outer solar system contains a striking crime scene with a big mystery: How did Neptune get a moon like Triton?

2020年6月16日 · A new Discovery mission proposal, Trident would explore Neptune’s largest moon, Triton, which is potentially an ocean world with liquid water under its icy crust. Trident aims to answer the questions outlined in the graphic illustration above.

2010年1月1日 · Triton is the biggest of Neptune’s thirteen known moons. This moon is suspected to have been captured by Neptune, which would explain its highly unusual orbit and rotation. One of the only bodies in the solar system to have a retrograde orbit, Triton also rotates at an angle of 157° to the axis of Neptune’s rotation.

1998年10月30日 · Triton appears in the lower right corner at about 5 o'clock relative to Neptune. Recent measurements from Voyager images show Triton to be between 1,400 and 1,800 kilometers (about 870 to 1,100 miles) in radius with a surface that …