(6177) Fecamp

V. Benishek, Belgrade Astronomical Observatory; P. Pravec, Ondrejov Observatory; M. Husarik, G. Cervak, and M. Pikler, Skalnate Pleso Observatory; R. Durkee, Shed of Science South Observatory, Pontotoc, TX, U.S.A.; A. Leroy, Uranoscope de l'Ile de France, Gretz-Armainvilliers, France; and P. Sogorb, La Bastide des Jourdans, France, report that photometric observations taken with a 0.35-m telescope at the Sopot Observatory in Serbia, 0.61-m and 1.3-m telescopes at the Skalnate Pleso Observatory, a 0.50-m telescope at the Shed of Science South Observatory, a 0.25-m telescope at the Uranoscope de l'Ile de France, and a 0.28-m telescope at the Bastidan Observatory in France during Feb. 14-Apr. 7 reveal that minor planet (6177) is a binary system with an orbital period of 22.105 +/- 0.005 hr. The primary shows a period of 4.4559 +/- 0.0003 hr and has a lightcurve amplitude of 0.14 magnitude at solar phases 2-11 degrees, suggesting a nearly spheroidal shape. Mutual eclipse/occultation events that are 0.16 to 0.32 magnitude deep indicate a secondary-to-primary mean-diameter ratio of 0.40 +/- 0.02. The secondary appears synchronous and has a light-curve amplitude (in the combined primary-plus-secondary light curve) of 0.03 mag, suggesting a moderately elongated shape with an equatorial-axis ratio of 1.2 +/- 0.1.