(1453) Fennia
Abstract
B. D. Warner, Palmer Divide Observatory, Colorado Springs, CO; A. W. Harris, Space Science Institute; P. Pravec, Ondrejov Observatory; R. D. Stephens, Goat Mountain Astronomical Research Station, Yucca Valley, CA; D. Pray, Carbuncle Hill Observatory, Greene, RI; W. Cooney, J. Gross, and D. Terrell, Sonoita Research Observatory, Sonoita, AZ; S. Gajdos and A. Galad, Modra Observatory; and Yu. Krugly, Institute of Astronomy of Kharkiv National University, Main Astronomical Observatory of National Academy of Science of Ukraine, report that photometric observations made during Nov. 4-23 reveal that minor planet (1453) is a binary system with an orbital period of 22.99 +/- 0.01 hr. The primary shows a period of 4.4121 +/- 0.0001 hr, and it has a lightcurve amplitude of 0.18 mag, suggesting a nearly spheroidal shape. Mutual eclipse/occultation events indicate a lower limit on the secondary-to-primary mean-diameter ratio of 0.28 +/- 0.02.
- Publication:
-
Central Bureau Electronic Telegrams
- Pub Date:
- December 2007
- Bibcode:
- 2007CBET.1150....1W