[IAUC] CBET 1794: 20090507 : (6708) BOBBIEVAILE

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                                                  Electronic Telegram No. 1794
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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(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.


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                         (C) Copyright 2009 CBAT
2009 May 7                       (CBET 1794)              Daniel W. E. Green