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1900 Katyusha
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1900 Katyusha : ウィキペディア英語版
1900 Katyusha

1900 Katyusha, provisional designation 1971 YB, is a small but bright stony asteroid of the inner main-belt. It was discovered on December 16, 1971 by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj〔 and measures about 9 kilometers in diameter. Its albedo of 0.29 has been determined by spectrophotometric observations made by NEOWISE in 2010–2011.〔〔
The asteroid orbits the Sun at a distance of 1.9–2.5 AU once every 3 years and 3 months (1,200 days)〔 and rotates around its axis with a period of nine and a half hours ( h, mag).〔 It is an assumed S-type asteroid belonging to the Flora family.〔
Named in honor of Ukrainian Ekaterina Ivanovna Zelenko (1916–1941), a war pilot and Hero of the Soviet Union, known for being the only woman who had ever executed an aerial ramming. The asteroid's name "Katyusha" is a petname for Ekaterina.〔
== References ==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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