Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...72..507m&link_type=abstract
Icarus (ISSN 0019-1035), vol. 72, Dec. 1987, p. 507-518. Research supported by the Emil Aaltonen Foundation, Florida Institute o
Astronomy and Astrophysics
Astronomy
55
Albedo, Astronomical Photography, Ceres Asteroid, Diameters, Occultation, Light Curve, Signal To Noise Ratios, Stellar Radiation, Topography, Asteroid, Size, Shape, Density, Albedo, Ceres, Occultations, Radius, Photoelectric Methods, Earth-Based Observations, Density, Surface, Analysis, Lightcurves, Optical Properties, Physical Properties
Scientific paper
The occultation of BD +8°471 by Ceres on 13 November 1984 was observed photoelectrically at 13 sites in Mexico, Florida, and the Caribbean. These observations indicate that Ceres is an oblate spheroid having an equatorial radius of 479.6±2.4 km and a polar radius of 453.4±4.5 km. The mean density of this minor planet is 2.7 g/cm3±5%, and its visual geometric albedo is 0.073. While the surface appears globally to be in hydrostatic equilibrium, firm evidence of real limb irregularities is seen in the data.
A'Hearn Michael F.
Beish Jeff D.
Douglas W. T.
Dunham Edward
Franz Otto G.
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