CAOSP abstracts, Volume: 25, year: 1995

Abstract: A set of thirteen large-scale exposures of comet Bradfield 1987 XXIX taken between 1987 November 8 and December 25 is evaluated. The observations were obtained with the 63/85/187 cm Maksutov telescope of the Klet' Observatory. The studied plasma tail with visible plasma rays, kinks, and disconnection events on some exposures extends out of the field of the plates. Therefore, the tail must have been longer than 1.75 degree. The dust antitail on the best exposures is as long as 0.5 degree. For this period the solar wind velocity is determined from the aberration angle of the plasma tail in the comet's environment. The determined value of the solar wind velocity is compared with the satellite data recorded near the Earth.

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