- Arthur Stanley Williams
Arthur Stanley Williams (1861 in
Brighton –November 21 ,1938 ) was an Englishsolicitor and amateurastronomer . He dedicated himself to the telescopic observation of theplanet s. He also was enthusiastic aboutyachting , winning the Challenge Cup in 1920.Planetary works
Using a 6.5
inch reflector on anequatorial mount for most of his work, he published an influential paper in 1896: "On the Drift of Surface Material of Jupiter in Different Latitudes." With this work he greatly strengthened the efforts to systematically observe Jupiter. He also invented the naming of belts and zones in 1898. He championed the method of determining thelongitude of surface features using their central meridian transit.In 1899 he published his most influential paper: "Periodic Variations in the Colours of the two Equatorial Belts of Jupiter."
He also observed spots on
Saturn , and the "linear features" onMars , called "canals". He agreed early on with E. M. Antoniadi that these were largely illusory.Awards
He was made a fellow of the
Royal Astronomical Society in 1884, and was awarded theJackson-Gwilt Medal in 1923.Williams crater on the
Moon and a crater on Mars are named in his honor.External links
Obituaries
* [http://adsabs.harvard.edu//full/seri/MNRAS/0099//0000313.000.html MNRAS 99 (1939) 313]
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