…He later worked on calculating the orbits and positions of asteroids and other stars, and eventually became famous as a celestial orbiter and a calculator of predicted positions. In 1907-08, he worked with PH Cowell to trace the return of Halley's Comet back to 240 BC and to match it with ancient observational records. The predicted position he calculated for the 1910 return was only three days earlier than the actual perihelion date. For this work, the two were awarded the Lindemann Prize by the German Astronomical Society and an honorary doctorate from Oxford University. … *Some of the terminology that mentions "Cowell, PH" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…その後は小惑星やすい星の軌道計算や位置推算にも従事して,やがて新発見天体の軌道の決定や予報位置の計算者として著名になった。1907‐08年にはカウエルP.H.Cowellに協力してハレーすい星の回帰運動を前240年にまでさかのぼって追跡して古代の観測記録と対応させ,また1910年の回帰について計算した予報位置は,実際の近日点通過の日時より3日早かったにすぎない。この功績によってふたりはドイツ天文学会からリンデマン賞を,またオックスフォード大学からは名誉学位を贈られた。… ※「Cowell,P.H.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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