The opposition of Mars, 1986

Details The opposition of Mars, 1986 The opposition of Mars, 1986

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jbaa...99..215m&link_type=abstract

Journal of the British Astronomical Association, vol.99, no.5, p.215-232

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The BAA observations of the 1986 perihelic apparition are described and illustrated by a summary map, photographs and drawings. The seasonal behaviour of the south polar caps was studied in detail, with several rifts and bright portions being recorded. The regression curve did not differ greatly from the historical results of Antoniadi and Slipher. The north polar hood displayed daily variations in brightness and extent. Several local dust storms occurred, but in 1986 there was no global event. A number of albedo changes on the Martian surface were detected, the most important of these involving Hesperia, Noachis, Solis Lacus, Phasis and Mare Sirenum. The Aetheria darkening was still present, while Nepenthes and the E end of Sinus Sabaeus remained faint.

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