...It later appeared in the eastern sky at dawn with a 30-degree tail, and was the first to be observed in infrared light, contributing to the development of comet astronomy. Comets with almost the same orbit as this one appeared in 1843, 1880, 1882, 1887, 1945, and 1965, and are known as the Sun Grazing Comet Group, a group of comets that graze the sun. It is thought that a long time ago, a large comet approached the sun and split into pieces, and then each time it approached the sun, it repeatedly split and increased in number. ... *Some of the terminology that refers to the "Sun Grazing Comet Group" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…その後,明け方の東天に長さ30度の尾をなびかせて現れ,初めて赤外線による観測が行われるなど,すい星天文学の発展に寄与した。このすい星とほとんど同じ軌道をもったすい星が,1843年,80年,82年,87年,1945年,65年などに出現していて,太陽をかすめるすい星群Sun Grazing Comet Groupと呼ばれている。大昔,一大すい星が太陽に接近して分裂し,その後,太陽に近づくたびに分裂を繰り返して数が増えたものと考えられる。… ※「Sun Grazing Comet Group」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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