Television observations of comet Halley from Vega spacecraft
Television observations of comet Halley from Vega spacecraft
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DOI:
10.1038/321262a0
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发表时间:
1986-05
期刊:
影响因子:
64.8
通讯作者:
R. Sagdeev;F. Szabó;G. Avanesov;P. Cruvellier;László Szabó;K. Szego;Alain Abergel;A. Balázs;I. Barinov;J. Bertaux;J. Blamont;M. Detaille;E. Demarelis;G. N. Dul’nev;G. Endrőczy;M. Gárdos;M. Kanyo;V. Kostenko;V. Krasikov;T. Nguyen-Trong;Z. Nyitrai;I. Reny;P. Rusznyak;V. Shamis;Bradford A. Smith;K. G. Sukhanov;S. Szalai;V. Tarnopolsky;I. Tóth;G. Tsukanova;B. Valníček;L. Várhalmi;Yu. K. Zaiko;S. I. Zatsepin;Y. Ziman;M. Zsenei;B. Zhukov
中科院分区:
文献类型:
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作者:
R. Sagdeev;F. Szabó;G. Avanesov;P. Cruvellier;László Szabó;K. Szego;Alain Abergel;A. Balázs;I. Barinov;J. Bertaux;J. Blamont;M. Detaille;E. Demarelis;G. N. Dul’nev;G. Endrőczy;M. Gárdos;M. Kanyo;V. Kostenko;V. Krasikov;T. Nguyen-Trong;Z. Nyitrai;I. Reny;P. Rusznyak;V. Shamis;Bradford A. Smith;K. G. Sukhanov;S. Szalai;V. Tarnopolsky;I. Tóth;G. Tsukanova;B. Valníček;L. Várhalmi;Yu. K. Zaiko;S. I. Zatsepin;Y. Ziman;M. Zsenei;B. Zhukov
The television system (TVS) aboard the spacecraft Vega 1 and Vega 2 observed comet Halley from 4 to 11 March 1986, and transmitted ∼1,500 images to Earth. The best images of the cometary nucleus were obtained from distances of 8,000–9,000 km. The nucleus is an irregular potato-shaped body, ∼14 × 7.5 × 7.5 km in size, which rotates with a period of 53±3 h. The surface is rather dark; the measured albedo is ∼0.04−0.01+0.02. Active emission of matter was observed on the sunlit side of the nucleus.