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Phoebe, a satellite of Saturn, becomes the first to be discovered with photographs, taken in August 1898, by William Henry Pickering.
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Phoebe (moon)
Moon of Saturn
Phoebe is the most massive irregular satellite of Saturn with a mean diameter of 213 km (132 mi). It was discovered by William Henry Pickering on 18 March 1899 from photographic plates that had been taken by DeLisle Stewart starting on 16 August 1898 at the Boyden Station of the…Source: Wikipedia (CC BY-SA)
Moons of Saturn
Natural satellites of the planet Saturn
The moons of Saturn are numerous and diverse, ranging from tiny moonlets only tens of meters across to Titan, which is larger than the planet Mercury. As of 11 March 2025, there are 274 moons with confirmed orbits, the most of any planet in the Solar System. Three of these are…Source: Wikipedia (CC BY-SA)
William Henry Pickering
American astronomer (1858–1938)
William Henry Pickering was an American astronomer. Pickering constructed and established several observatories or astronomical observation stations, notably including Percival Lowell's Flagstaff Observatory. He spent much of the later part of his life at his private observatory…Source: Wikipedia (CC BY-SA)
March 18
Day of the year
March 18 is the 77th day of the year in the Gregorian calendar; 288 days remain until the end of the year.Source: Wikipedia (CC BY-SA)