Photographic observations of tail-formation activities of comet P/Halley in November 1985

Details Photographic observations of tail-formation activities of comet P/Halley in November 1985 Photographic observations of tail-formation activities of comet P/Halley in November 1985

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...187..225l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 187, no. 1-2, Nov. 1987, p. 225-228.

Astronomy and Astrophysics

Astrophysics

3

Astronomical Photography, Comet Tails, Halley'S Comet, Plasma Dynamics, Solar Wind, Ubv Spectra, Astronomical Spectroscopy, Spectral Energy Distribution

Scientific paper

On November 12, 1985 the plasma tail of comet P/Halley made its first appearance during the latest apparition. Subsequently the comet displayed a great variety of tail activities. These included structures of different shapes in different bands even on the same night. The activities in the U and B bands usually preceded those in the V and R bands and were more prominent. According to the morphologies and lengths of the structures which appeared in the B and U bands they were plasma tails rather than dust jets. The deviation of the tail from the antisolar direction seemed to show a general tendency of decrease as the comet got closer and closer to the sun.

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