A new model of the asteroid 532 Herculina.

Details A new model of the asteroid 532 Herculina. A new model of the asteroid 532 Herculina.

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...309..970m&link_type=abstract

Astronomy and Astrophysics, v.309, p.970-978

Astronomy and Astrophysics

Astrophysics

4

Asteroids, Planets And Satellites: Individual: 532 Herculina

Scientific paper

The asteroid 532 Herculina has very unusual lightcurves. They exhibit two maxima and two minima per rotational cycle in some apparitions and only one maximum and minimum within the same period during others. It was not possible to explain such lightcurves with a triaxial ellipsoidal shape, so a new, more complex model has been proposed. It is also a triaxial ellipsoid but with rotation around an axis which does not coincide with the c-axis of ellipsoid. The parameters obtained for Herculina are as follows: the ecliptic coordinates of the north pole are (295deg,+36deg) during the 1954-1992 period.

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