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1137 Raïssa
1137 Raïssa is a main belt asteroid orbiting the Sun. Approximately 24 kilometers in diameter, it makes a revolution around the Sun once every 4 years. It was discovered by G. Neujmin on October 27, 1929.〔 It has a long 142.79 hours rotation period.〔 It is named for Raissa Ivanovna Maseeva, who computed its orbit. Its provisional designation was 1929 WB.〔(【引用サイトリンク】 url=http://neopage.nm.ru/ENG/GENERAL/p05.htm )〕 ==References==
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