Titlebook: Reports on Astronomy; Jacqueline Bergeron (General Secretary of the Unio Book 1994 Springer Science+Business Media Dordrecht 1994 Astromet

Obituary

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Physical Study of Planets & Satellites,onference, held each spring at Houston. Both meetings attract between 300 and 600 registrants, with a comparable number of papers presented. The primary journals for publication of planetary science are . and the ., although many other astronomical and geoscience journals play an important role, as well as the two general-science journals . and .

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Book 1994and contains accounts of Commission Meetings which wereheld, together with other material. The reports included in thepresent volume range from outline summaries to lengthy compilationsand references. Most reports are in English.

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eAssembly and contains accounts of Commission Meetings which wereheld, together with other material. The reports included in thepresent volume range from outline summaries to lengthy compilationsand references. Most reports are in English.978-94-010-4481-3978-94-011-1100-3

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Ephemerides, IAU (1976) system of astronomical constants, apart from minor modifications introduced to allow a better fit to observations. The majority of the ephemerides are based on the fundamental ephemerides of the Moon and planets prepared by the Jet Propulsion Laboratory. At the 21st General Assembly of t

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Instruments and Techniques,rt. The 10 m Keck I telescope, the first of the twin facility utilizing active mosaic reflector has entered the operational phase, while the second unit progressed in its construction phase aiming towards its completion in 1995. Although the Columbus project of constructing a twin binocular telescop