Rotation period of comet Donati

Details Rotation period of comet Donati Rotation period of comet Donati

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.273..134w&link_type=abstract

Nature, vol. 273, May 11, 1978, p. 134, 135.

Physics

27

Comets, Halos, Orbit Calculation, Angular Velocity, Comet Nuclei, Eccentric Orbits, Ejection, Schwassmann-Wachmann Comet, Solar Radiation, Space Debris, Comets, Rotation, Orbits, Donati Comet

Scientific paper

Consideration is given to the rotation period of comet Donati (1858 VI) whose haloes were approximate parabolic envelopes having foci near the apparent nucleus and vertices toward the sun forward from the tail axis. The regularity and sharpness of the halves suggest that they represent the repetitive ejection of material from an active area which is exposed to solar radiation as the cometary nucleus rotates. Bobrovnikov's results (1954) are used to evaluate the linear expansion velocity of such haloes. This calculation is applied to the comet and a linear correction is used to assess the results.

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