The 1987-88 Eastern (Evening) Apparition of the planet Venus - Visual and photographic observations

Details The 1987-88 Eastern (Evening) Apparition of the planet Venus - Visual and photographic observations The 1987-88 Eastern (Evening) Apparition of the planet Venus - Visual and photographic observations

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jalpo..33..145b&link_type=abstract

Association of Lunar and Planetary Observers, Journal (ISSN 0039-2502), vol. 33, Oct. 1989, p. 145-156.

Other

Polar Caps, Polar Cusps, Venus (Planet), Venus Atmosphere, Albedo, Astronomical Photography, Astronomical Photometry, Planetary Limb, Terminator Lines

Scientific paper

This report summarizes visual and photographic observations of the planet Venus for the 1987-88 Eastern (Evening) Apparition, based on an extensive analysis of data submitted by A.L.P.O. Venus Section observers in the United States and five other countries. Sources of data and the instruments used in acquiring information about Venus are emphasized, with a statistical analysis of the categories of features seen or suspected in the atmosphere of Venus at visual wavelengths, both in integrated light and with color filters. A similar treatment is given to the cusps, cusp-caps, and cusp-bands, together with a discussion of dark-hemisphere phenomena, including the Ashen Light; the last in conjuction with the cooperative A.L.P.O.-Pioneer Venus Orbiter Ashen Light Monitoring Program for 1988. Comparative studies deal with the observers, instruments, visual and photographic data, and simultaneous observations. Selected drawings and photographs are included in order to help the reader to appreciate the variable phenomena observed in the atmosphere of Venus in 1987-88.

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