The rotation, color, phase coefficient, and diameter of 1915 Quetzalcoatl

Details The rotation, color, phase coefficient, and diameter of 1915 Quetzalcoatl The rotation, color, phase coefficient, and diameter of 1915 Quetzalcoatl

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...55..495b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 55, Sept. 1983, p. 495-497.

Physics

3

Asteroids, Colorimetry, Light Curve, Planetary Rotation, Ubv Spectra, Diameters, Electrophotometry, Magnitude, Phase Shift

Scientific paper

Photoelectric observations of 1915 Quetzalcoatl on March 2, 1981 show that this asteroid has a rotational period of 4.9 + or - 0.3 hr and a lightcurve amplitude of 0.26 magnitudes. B-V and U-B colors are found to be 0.83 + or - 0.04 and 0.43 + or - 0.03, respectively, consistent with Quetzalcoatl being an S-type asteroid. Additional observations from March 31, 1981, give a linear phase coefficient of 0.033 mag/deg and a mean B(1,0) magnitude of 20.10. The resulting estimated mean diameter for Quetzalcoatl is only 0.37 km, making it one of the smallest asteroids for which physical observations have yet been made.

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