Rotation period and photoelectric lightcurves of asteroids 68 Leto and 563 Suleika

Details Rotation period and photoelectric lightcurves of asteroids 68 Leto and 563 Suleika Rotation period and photoelectric lightcurves of asteroids 68 Leto and 563 Suleika

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26as...41..335s&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 41, Sept. 1980, p. 335-338. Research supported by the Oesterreichischer Fond

Astronomy and Astrophysics

Astrophysics

3

Asteroids, Electrophotometry, Light Curve, Planetary Rotation, Colorimetry, Periodic Variations, Ubv Spectra, Asteroids, Rotation, Period, Photoelectric Properties, Light Curve, Leto Asteroid, Suleika Asteroid, Photometry, Amplitude, Colors, Telescopic Observations, Data, Equipment, Wavelengths, Ultraviolet, Infrared, Light (Visible Radiation)

Scientific paper

Asteroids 68 Leto and 563 Suleika were observed photometrically during their 1978 opposition with the 50 cm telescope of the European Southern Observatory (Chile). Until August 1978, no rotation period had been determined for these minor planets.
The rotation lightcurve of 68 Leto displays three identifiable maxima and minima with a total amplitude ΔV = 0.19 mag. and the synodic period of rotation is found to be 14h50m51s± 52s. For 563 Suleika the derived synodic period of rotation is 5h41m31s ± 3m36s and its lightcurve shows two nearly symmetric maxima and minima within an amplitude range ΔV = 0.21 mag.
The color indices measured for 68 Leto and 563 Suleika are, respectively, B-V = 0.839 ± 0.022 mag., U-B = 0.472 ± 0.025 mag. and B-V = 0.891 ± 0.017 mag., U-B = 0.459 ± 0.030 mag. with no trends of variation exceeding the mean scatter of the observations.

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