Planetary observations made by the astrolabe

Details Planetary observations made by the astrolabe Planetary observations made by the astrolabe

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980cemec..22...35d&link_type=abstract

(Symposium on Star Catalogues, Positional Astronomy and Celestial Mechanics, Washington, D.C., Nov. 30, 1978.) Celestial Mechani

Astronomy and Astrophysics

Astronomy

1

Astronomical Coordinates, Astronomical Observatories, Galilean Satellites, Planet Ephemerides, Planetology, Astronomy, Celestial Mechanics, France, Jupiter (Planet), Mars (Planet), Position (Location), Solar System, Uranus (Planet)

Scientific paper

The use of the Danjon astrolabe, originally designed for time and latitude observations, to obtain measurements of planetary positions is discussed. Campaigns for the observation of the various planets, asteroids and Galilean satellites of Jupiter undertaken since the beginning of the 1960s are indicated, and results obtained are shown to be in agreement with measurements made by other instruments. Corrections to planetary ephemerides and theories provided by astrolabe observations are considered, and modifications to the basic design of the astrolabe which would extend its applicability as well as improve its precision are presented, including the full pupil astrolabe, a photoelectric astrolabe and an astrolabe designed for solar observations. It is concluded that the astrolabe, together with other classical astronomical instruments, represents a useful tool in positional astronomy and may be used in the future in conjunction with such techniques as radio astronomy, interferometry and space astronomy.

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