The remaining large minor planets with unknown rotational properties - 31 Euphrosyne and 65 Cybele

Details The remaining large minor planets with unknown rotational properties - 31 Euphrosyne and 65 Cybele The remaining large minor planets with unknown rotational properties - 31 Euphrosyne and 65 Cybele

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....91....1s&link_type=abstract

Astronomy and Astrophysics, vol. 91, no. 1-2, Nov. 1980, p. 1-6. Research supported by the Oesterreichischer Fonds zur Foerderu

Astronomy and Astrophysics

Astrophysics

7

Asteroids, Astronomical Photometry, Light Curve, Planetary Rotation, Electrophotometry, Natural Satellites, Stellar Occultation, Ubv Spectra

Scientific paper

Photoelectric photometry results are presented for 31 Euphrosyne and 65 Cybele. The rational properties of the asteroids were found to be quite similar, both in period and maximum amplitude. Evidence was found for an opposition effect for 65 Cybele. The B-V and U-B colors were determined to be plus 0.67 and plus 0.30 for 31 Euphrosyne, plus 0.73 and plus 0.23 for 65 Cybele. Recent observations of 65 Cybele occulting a star have shown evidence of a possible satellite for this minor planet.

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