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1609 Brenda
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1609 Brenda : ウィキペディア英語版
1609 Brenda

1609 Brenda, provisional designation 1951 NL, is an eccentric, stony asteroid from the inner regions of the asteroid belt, about 30 kilometers in diameter. It was discovered by South African astronomer Ernest Johnson at the Union Observatory in Johannesburg on 10 July 1951.〔
The S-type asteroid orbits the Sun at a distance of 1.9–3.2 AU once every 4 years and 2 months (1,517 days). Its orbit shows an eccentricity of 0.25 and is tilted by 19 degrees to the plane of the ecliptic. It has a rotation period of 19 and 23 hours, depending on different observations.〔〔 Based on the IRAS and Akari surveys, its albedo lies between 0.11 and 0.13.〔〔
The minor planet was named by the discoverer after his granddaughter, Brenda.〔 Ernest Johnson also discovered the periodic comet 48P/Johnson using the Franklin-Adams Star Camera.
== 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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