AbstractNine HST orbits have been used to image Ceres using the High Resolution Camera of the Advanced Camera for Surveys. Two hundred and fifty-nine images in three filters (F555W, F330W and F220W) were obtained covering the entire surface. Two visible features are readily apparent, a dark patch and a bright point. The bright spot was suitable for control point work enabling the spin axis (291° RA and 59° Dec.) and the latitude (14°N) of the bright point to be determined. Limb accuracies of approaching 0.1 pixel accuracy enabled the shape of Ceres to be determined to be rotationally symmetric with a short axis of 909 km and a long axis of 975 km. Analysis of these images is preliminary and continues to be refined.


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    Titel :

    Ceres: High-resolution imaging with HST and the determination of physical properties


    Beteiligte:
    Parker, J.W. (Autor:in) / McFadden, L.A. (Autor:in) / Russell, C.T. (Autor:in) / Stern, S.A. (Autor:in) / Sykes, M.V. (Autor:in) / Thomas, P.C. (Autor:in) / Young, E.F. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 38 , 9 ; 2039-2042


    Erscheinungsdatum :

    2004-12-06


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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    McCarthy, D. / McLeod, B. / Freeman, J. et al. | British Library Conference Proceedings | 1992


    High-Resolution Speckle Masking Observations of the Asteroids Ceres and Vesta

    Schertl, D. / Hofmann, K.-H. / Weghorn, H. et al. | British Library Conference Proceedings | 1992


    State of CERES

    Norman G. Loeb | NTRS