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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Nucleus studies of comet Halley


    Contributors:

    Published in:

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


    Publication date :

    1985-01-01


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Nucleus studies of Comet Halley

    Sekanina, Z. | NTRS | 1985


    Dust photometry in the near nucleus region of Comet Halley

    Szegö, K. / Tòth, I. / Szatmáry, Z. et al. | Elsevier | 1989


    Comet Halley: Nucleus and jets (results of the VEGA mission)

    Sagdeev, R.Z. / Avanesov, G.A. / Barinov, I.V. et al. | Elsevier | 1985


    Plans for Comet Halley

    Rahe, J. | NTRS | 1981


    Comet Halley and history

    Marsden, B. G. | NTRS | 1979