Electronic Telegram No. 1794 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://www.cfa.harvard.edu/iau/cbat.html (6708) BOBBIEVAILE D. Pray, Carbuncle Observatory, W. Brookfield, MA, U.S.A.; K. Hornoch, P. Kusnirak, and P. Pravec, Ondrejov Observatory; V. Chiorny and Yu. Krugly, Kharkiv Observatory; M. Husarik and M. Pikler, Skalnate Pleso Observatory; F. Marchis, B. Macomber, and M. Kislak, SETI Institute and University of California at Berkeley; and J. Vilagi and S. Gajdos, Modra Observatory, report that photometric observations obtained during Apr. 16 to May 3 reveal that minor planet (6708) is a binary system with an orbital period of 24.7 hr. The primary shows a period of 8.221 +/- 0.002 hr, assuming a bi- modal lightcurve, and it has a lightcurve amplitude of 0.08 mag, suggesting a nearly spheroidal shape. Mutual eclipse/occultation events with a depth of 0.31 mag indicate a lower limit on the secondary-to-primary mean-diameter ratio of 0.57. The mean absolute R-band magnitude of the system is H = 12.81 +/- 0.14, assuming G = 0.25 +/- 0.2. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 May 7 (CBET 1794) Daniel W. E. Green