English astronomer William Lassell's 24-inch reflecting telescope, completed in 1845. Lassell's (1799-1880) telescope was the first to be mounted equatorially. With it, in 1851, he discovered four new satellites: Neptune, Neptune's largest moon, and two m

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English astronomer William Lassell's 24-inch reflecting telescope, completed in 1845. Lassell's (1799-1880) telescope was the first to be mounted equatorially. With it, in 1851, he discovered four new satellites: Neptune, Neptune's largest moon, and two moons of Uranus.

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Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
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Keywords: 24-, art, artwork, astronomical, astronomy, bw, diagram, drawing, engraving, equatorial, historic, historical, history, illustration, instrument, lassel, lassell, mount, reflecting, telescope, william