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  1. Article

    Jets And Arcs In The Coma Of Comet Hale-Bopp From August 1996 To April 1997

    An observation program for measuring the activity of Comet Hale-Bopp was conducted at the Observatoire de Haute Provence from August 1996 to April 1997. Narrow band images were obtained from the 120 cm telesco...

    CÉLINE LAFFONT, P. ROUSSELOT, J. CLAIREMIDI, G. MOREELS… in Earth, Moon, and Planets (1997)

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    Chapter and Conference Paper

    Properties of dust in comet P/Halley measured by the Vega-2 three-channel spectrometer

    Optical properties of cometary dust exhibit no substantial variations at distances from 100 to 15 000 km from the nucleus. Dust ejection can be approximated by cos φ where φ is the angle with the sun-nucleus axis...

    V. A. Krasnopolsky, V. I. Moroz, A. A. Krysko… in Exploration of Halley’s Comet (1988)

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    Chapter and Conference Paper

    Spectrophotometry of comet P/Halley at wavelengths 275—710 nm from Vega 2

    Spectrophotometric observations of the inner coma of comet Halley in the range 275-710 nm were conducted from Vega 2 on March 8, 9, 10, 11, 1986. During the encounter session, when the impact parameter was min...

    G. Moreels, J. Clairemidi, J. P. Parisot, J. M. Zucconi… in Exploration of Halley’s Comet (1988)