(1052) Belgica
Abstract
L. Franco, Rome, Italy; P. Pravec, Ondrejov Observatory; A. Ferrero, Mombercelli, Asti, Italy; and L. Martinez, Casa Grande, AZ, USA, report that photometric observations carried out during 2012 Nov. 17-Dec. 18 reveal that the minor planet (1052) is a binary system with an orbital period of 47.26 +/- 0.02 hr. The rotational light curve of the primary has a period of 2.7097 +/- 0.0001 hr with an amplitude of 0.08 mag that suggests a nearly spheroidal shape. The depth of the secondary event observed on 2012 Dec. 6.9 (0.13 mag) gives a lower limit on the secondary-to-primary mean diameter ratio of 0.36 +/- 0.02.
- Publication:
-
Central Bureau Electronic Telegrams
- Pub Date:
- January 2013
- Bibcode:
- 2013CBET.3372....1F