Abstract Early results from, and research initiatives warranted by, the Earth-based observations of Halley's near-nucleus and related phenomena are reviewed. Where appropriate, this information is combined with spacecraft data obtained by the various flight projects. The basic objective is to gain a greater insight into the nature of the comet's nucleus and its environment. Among topics are the brightness variations at large heliocentric distances along the inbound leg of the orbit; the bulk and rotational properties of the nucleus, including possible precession; the surface morphology and the formation of dust jets; subfemtogram dust particles and their presence in a sunward spike and relation to CN jets; comparison of the hydrogen coma's “pulsation” pattern with the surface distribution of major dust vents; the events causing Giotto's wobbling near its closest approach to the comet; and the recent developments in theoretical modeling of the icy-conglomerate nucleus.


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    Titel :

    Nucleus studies of comet Halley


    Beteiligte:
    Sekanina, Z. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 5 , 12 ; 307-316


    Erscheinungsdatum :

    01.01.1985


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    Plans for Comet Halley

    Rahe, J. | NTRS | 1981


    Surface and dust features seen on the nucleus of comet Halley

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