31.6 MB (2.5 MB compressed)
3256 x 3394 pixels
27.7 x 28.7 cm ⏐ 10.9 x 11.3 in (300dpi)
NYPL / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY NYPL / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
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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