Nature: William Lassell, LL.D., F.R.S. 1
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William Lassell
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.
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science · English merchant and astronomer (1799–1880) · astronomer · physicist · merchant · also William Lassell, Lassell
Born 18 June 1799 · Died 5 October 1880 · Q110869
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2025· 1 entry
1880· 1 entry
Died 1880-10-05.
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1870· 1 entry
Career landmark: President of the Royal Astronomical Society (1870–1872).
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1858· 1 entry
Won Royal Medal (1858).
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1855· 1 entry
Built a 48-inch (1,200 mm) telescope, which he installed in Malta because of the observing conditions that were better than in often-overcast England
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1851· 1 entry
Discovered Ariel and Umbriel, two moons of Uranus
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1849· 2 entries
Won Gold Medal of the Royal Astronomical Society (1849).
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And served as its president for two years starting in 1870
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1848· 1 entry
Independently co-discovered Hyperion, a moon of Saturn
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1846· 1 entry
Lassell discovered Triton, the largest moon of Neptune, just 17 days after the discovery of Neptune itself by German astronomer Johann Gottfried Galle, using his self-built instrument
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1799· 1 entry
Born 1799-06-18.
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