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2054 Gawain, also designated 4097 P–L, is a asteroid from the asteroid belt about 20 kilometers in diameter. It was discovered on September 24, 1960 by astronomers Cornelis van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory, San Diego, California. The asteroid orbits the Sun at a distance of 2.7–3.3 AU once every 5.11 years (1865 days). It has a rotation period of 11.1 hours and a rather low geometric albedo of 0.07.〔 The asteroid was named after the figure Gawain, King Arthur's nephew and a Knight of the Round Table in the Arthurian legend.〔 The designation ''P–L'' stands for ''Palomar–Leiden'', named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden Observatory. The trio are credited with several thousand asteroid discoveries. == References == * Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「2054 Gawain」の詳細全文を読む スポンサード リンク
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