This meteor shower appears mainly around November 16th, and the number of meteors that appear varies greatly from year to year. Large meteor showers tend to occur approximately every 33 years. The great meteor showers of 1799 and 1833 are historic, with more than 10,000 meteors seen per hour. In 1965 Japan saw a significant appearance, and in 1966 America saw a significant appearance. Many bright meteors appear, and they often explode at the end. The radiant point is in Leo, at right ascension 150° and declination +22°. The parent comet is the Tempel-Tuttle comet. [Nagasawa Takumi] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
11月16日ころを中心に出現し,年によって流星の出現数が大きく変わる流星群。約33年ごとに大出現をすることが多い。1799年,1833年の大流星雨は歴史に残るもので,毎時1万個以上の流星が見られたという。1965年は日本で,66年はアメリカで相当な出現を見た。明るい流星が多く,末端でしばしば爆発をする。放射点はしし座で赤経150゜,赤緯+22゜。母すい星はテンペル‐タットルすい星。【長沢 工】
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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