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English astronomer William Lassell discovered Triton, the largest moon of Neptune.
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William Lassell
English merchant and astronomer (1799–1880)
William Lassell was an English merchant and astronomer. He is remembered for his improvements to the reflecting telescope and his ensuing discoveries of four planetary satellites.Source: Wikipedia (CC BY-SA)
Triton (moon)
Largest moon of Neptune
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…Source: Wikipedia (CC BY-SA)
Moons of Neptune
Natural satellites of the planet Neptune
The planet Neptune has 16 known moons, which are named for minor water deities and a water creature in Greek mythology. By far the largest of them is Triton, discovered by William Lassell on 10 October 1846, 17 days after the discovery of Neptune itself. Over a century passed…Source: Wikipedia (CC BY-SA)