Television observations of comet Halley from VEGA spacecraft

Details Television observations of comet Halley from VEGA spacecraft Television observations of comet Halley from VEGA spacecraft

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.321..262s&link_type=abstract

Nature (ISSN 0028-0836), vol. 321, May 15, 1986, p. 262-266.

Physics

123

Comet Nuclei, Halley'S Comet, Spacecraft Television, Television Systems, Vega Project, Albedo, Reflectance, Comets, Halley, Spacecraft Observations, Mission Description, Experiments, Vega 1, Vega 2, Tvs, Equipment, Television System, Comet Nuclei, Shape, Imagery, Size, Rotation, Period, Surface, Albedo, Emissions, Procedure, Photographs, Technique, Spectra, Analysis, Characteristics, Features

Scientific paper

The television system aboard the spacecrafts Vega 1 and Vega 2 observed comet Halley from March 4 to 11, 1986 and transmitted about 1500 images to earth. The best image of the cometary nucleus were obtained from distances of 8000-9000 km. The nucleus is an irregular potato-shaped body roughly 14 x 7.5 x 7.5 km in size which rotates with a period of 53 + or -3 hr. The surface is rather dark; the measured albedo is about 0.04 + 0.02 or -0.01. Active emission of matter was observed on the sunlit side of the nucleus.

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