Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aca....44..223m&link_type=abstract
Acta Astronomica, v.44, pp.223-226, (1994).
Astronomy and Astrophysics
Astronomy
6
Minor Planets
Scientific paper
Photometric CCD light curves of 1620 Geographos are presented. Using all available observations we estimate the retrograde sense of rotation with the sidereal period of 0.21763867 pm 0.00000008 days. A solution for the spin vector gives in ecliptic coordinates (1950.0) lambda_p=54circ pm 6circ and beta_p=-52circ pm 6circ. Assuming a triaxial ellipsoid model we obtain axial ratios of a/b=2.6 pm 0.3 and b/c=1.1 pm 0.2.
Borczyk Wojciech
Kwiatkowski Tomasz
Michalowski Tadeusz
Pych Wojtek
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