C/2012 S1 (ISON): early observations at Mt. Lemmon survey
Автор: Novichonok A.O., Kowalski R.
Журнал: Ученые записки Петрозаводского государственного университета @uchzap-petrsu
Рубрика: Физико-математические науки
Статья в выпуске: 6 (143), 2014 года.
Бесплатный доступ
Comet C/2012 S1 (ISON) promises to be a great comet in November-December 2013, near its perihelion. At the moment of its discovery it was already quite bright, with a well-defined coma. The CCD-images of the comet, taken by Mt. Lemmon sky survey nine months before it was officially discovered, have been thoroughly examined. At that time the object was located at a distance of 8.67 A.U. from the Sun. The examination of the images revealed well-marked comet activity: the share of the coma into the integrated brightness of the comet exceeded hundredfold the share of the nucleus. The coma of comet was no more than 60 000 km in diameter.
Comet c/2012 s1 (ison), mt. lemmon, comet activity, great comet
Короткий адрес: https://sciup.org/14750707
IDR: 14750707
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