Intermediate size asteroids: Photoelectric photometry of 8 objects.
Abstract
In this paper we present the results of photometric observations performed from 1984 until 1992 with the 0.5-m and 1-m telescopes of the European Southern Observatory (La Silla, Chile), and the 1.5-m telescope of the Osservatorio Astronomico di Bologna (Italy), in order to increase the available data sample of intermediate size asteroids (diameter included between 80km and 150km). We obtained a total of 26 single night lightcurves and the first determination of the synodical rotational period of six asteroids: 117 Lomia (P_syn_=9.127h), 212 Medea (P_syn_=10.12h), 276 Adelheid (P_syn_=6.328h), 530 Turandot (P_syn_=10.77h), 705 Erminia (P_ syn_=7.22h), and 1031 Arctica (P_syn_=51h). For 431 Nephele the amplitude of the light variation of the obtained lightcurves is negligible and does not allow any determination of the rotational period. For 213 Lilaea we have determined a synodical rotational period of 8.045h, which is a little bit different from that published by Zeigler (1987). We have also determined the U-B and B-V color indices for six of the observed asteroids.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- July 1995
- Bibcode:
- 1995A&AS..112....1D
- Keywords:
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- MINOR PLANETS;
- ASTEROIDS