ON THE BRIGHTNESS OF COMET P/HALLEY IN THE PAST

被引：0
|
作者：
GAJDOS, S
机构：
[1] Department of Astronomy and Astrophysics, Faculty of Mathematics and Physics, Comenius University, 842 15 Bratislava
来源：
PLANETARY AND SPACE SCIENCE | 1994年 / 42卷 / 08期
关键词：
D O I：
10.1016/0032-0633(94)90039-6
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
This paper deals with the brightness Changes of comet P/Halley in the past. On the basis of the analysis of Sun-Earth-comet configuration at the time of perihelion passage within 30 apparitions of the comet, since 240 BC, several groups of apparitions of similar observing geometry were specified. These groups were analysed with emphasis on brightness variations of the comet on different, long time scales. Absolute magnitudes and duration of naked-eye visibility both in pre-perihelion and post-perihelion periods of the comet are the main criteria for the aim of in this study. Some brightness increase of the comet in 912-1222 is indicated.
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页码：631 / 634
页数：4
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