Wit, CG - Wit

Japanese: ウイット,C.G. - ういっと
Wit, CG - Wit

…One of the peculiar asteroids discovered by Carl Gustav Witt in 1898. It is unusual in that it may approach the Earth unusually closely and in that it exhibits significant light variation. Based on its orbital semi-major axis of 1.46 astronomical units and eccentricity of 0.22, it may approach as close as 22.4 million km from the Earth near perihelion. It is well known that the value of the astronomical units was measured on the occasion of close approaches that occurred in 1900 and 1931. Eros's light variation is repeated regularly with a period of 5 hours and 16 minutes, and the amplitude of the variation ranges from zero to a maximum of 1.7 magnitudes. …

*Some of the terminology explanations that mention "wit, CG" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…1898年ウィットCarl Gustav Wittによって発見された特異小惑星の一つ。地球に異常に接近する可能性があるという点と,著しい変光を示すという点で特異である。軌道半長径1.46天文単位,離心率0.22という値から計算すると,近日点付近では地球から2240万kmまで接近する可能性がある。1900年および31年に起こった接近の機会を利用して天文単位の値の測定が行われたことは有名である。エロスの変光は規則正しく5時間16分の周期で繰り返され,変光の振幅はゼロから最大1.7等級にまで達する。…

※「ウイット,C.G.」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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