Observing Mars in 1990-91

Details Observing Mars in 1990-91 Observing Mars in 1990-91

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990s%26t....80..130p&link_type=abstract

Sky and Telescope (ISSN 0037-6604), vol. 80, Aug. 1990, p. 130-135.

Astronomy and Astrophysics

Astronomy

1

Astronomy, Mars (Planet), Planetology, Astronomical Photography, Mars Photographs, Mars Surface, Mars, Astronomy, Earth-Based Observations, Popular, Photographs, Maps, Seasonal Variation, Dust Storms, Photography, Techniques, Features, Telescope Methods, Surface, Characteristics, Physical Properties, Procedure, Equipment

Scientific paper

Mars, the only planet whose surface we can see in any detail from earth, has begun the best apparition it will provide until the year 2001. It will be ideally placed very high in the sky for observers in the Northern Hemisphere. It remains north of the celestial equator throughout this apparition, and it stays north of declination +20 degrees for many months around and after its time of closest approach. Several major visual observations are noted for the specific attention of the watcher; the white polar caps or polar cloud hoods, the atmospheric weather change phenomena, dust storms, and the dark and light areas indicating different surface markings of rock, gravel, or coarse sand on Mar's desert surface.

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