Lightcurves and Rotational Periods of Nine Main Belt Asteroids
Abstract
In this paper we present the results, obtained from September 1990 to October 1991, of a collaborative program between the Torino Astronomical Observatory and the Astronomy Institute of Catania University, which started 3 years ago, devoted to the determination of the rotational properties of the asteroids, to enlarging the available data set, and to obtaining bias-free photoelectric observations of small objects. We have determined reliable synodic rotational periods for the asteroids 122 Gerda ( P = 10 h.332 ± 0 h.004), 137 Meliboea ( P = 15 h.28 ± 0 h.02), 160 Una ( P = 5 h.61 ± 0 h.01), 168 Sybilla ( P = 23 h.82 ± 0 h.004), 377 Campania ( P = 8 h.507 ± 0 h.003), 454 Mathesis ( P = 7 h.075 ± 0 h.025), 550 Senta ( P = 20 h.555 ± 0 h.01), and 937 Bethgea ( P = 8 h.356 ± 0 h.006). For 500 Selinur we obtained an estimate of about 9 h of the possible spin period.
- Publication:
-
Icarus
- Pub Date:
- February 1994
- DOI:
- 10.1006/icar.1994.1022
- Bibcode:
- 1994Icar..107..269D
- Keywords:
-
- Asteroids;
- Light Curve;
- Periodic Variations;
- Rotation;
- Astronomical Photometry;
- Collisions;
- ASTEROIDS;
- ASTEROID BELT;
- LIGHTCURVE;
- ROTATION;
- EARTH-BASED OBSERVATIONS;
- PERIOD;
- PHOTOELECTRIC METHODS;
- PROCEDURE;
- DATA;
- GERDA;
- MELIBOEA;
- UNA;
- SYBILLA;
- CAMPANIA;
- MATHESIS;
- SENTA;
- BETHGEA;
- SELINUR