Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988sssmp..31..340c&link_type=abstract
Scientia Sinica, Series A - Mathematical, Physical, Astronomical and Technical Sciences (ISSN 0253-5831), vol. 31, March 1988, p
Astronomy and Astrophysics
Astronomy
Astronomical Photography, Comet Nuclei, Comet Tails, Halley'S Comet, Giotto Mission, Vega Project
Scientific paper
Nine photographs taken on March 25, l986 at Mount John Observatory show that the nucleus of Comet Halley has split into two widely separated nuclei. The separated projected distance on the plane of the sky is about 5000 km. The principal nucleus and the secondary nucleus exhibit their own comas. The prominent jet ejected from the companion curves up to a height of several thousand km, and the secondary nucleus must fade out of sight within only a few days. In combination with the results of photoelectric observations taken by Chen et al. (1986), it seems that this event of splitting coincides with an outburst.
Chen Daohan
Liu Linzhong
Liu Zongli
Yan Linshan
Zheng Jiaqing
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