Astronomy and Astrophysics – Astronomy
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sao..reptr....m&link_type=abstract
Final Report, 1 Nov. 1973 - 31 Mar. 1989 Smithsonian Astrophysical Observatory, Cambridge, MA.
Astronomy and Astrophysics
Astronomy
Asteroids, Astrometry, Astronomy, Comets, Orbital Mechanics, Planets, Data Reduction, Orbits, Tables (Data)
Scientific paper
Observations were made with the 155-cm reflector at the Oak Ridge Observatory. Since the last semiannual report (issued in November 1988) there have been 20 observations of comets, 146 of numbered minor planets and 135 of minor planets that were unnumbered at the time of observation. The orbit computations made during this period mainly applied to new discoveries, which have recently been exceptionally numerous. 1989 has already produced five new Apollo objects, and the new-moon period in early January produced a record six new comets.
Marsden Brian G.
McCrosky Richard E.
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