Electronic Telegram No. 353
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://cfa-www.harvard.edu/iau/cbat.html


(2044) WIRT
     D. Pray, Carbuncle Hill Observatory, Greene, RI; P. Pravec
and P. Kusnirak, Ondrejov Observatory; W. Cooney, J. Gross, and
D. Terrell, Sonoita Research Observatory, Sonoita, AZ; A. Galad,
S. Gajdos, and J. Vilagi, Modra Observatory; and R. Durkee,
Minneapolis, MN, report that photometric observations obtained
during 2005 Dec. 8-29 reveal that minor planet (2044) is a binary
system with an orbital period of 18.97 +/- 0.01 hr.  The primary
rotates with a period of 3.6898 +/- 0.0001 hr, and its lightcurve
amplitude is 0.26 mag.  Mutual eclipse/occultations events that
are 0.07- to 0.15-mag deep indicate a secondary-to-primary
mean-diameter ratio of 0.25 +/- 0.02.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2006 CBAT
2006 January 6                   (CBET 353)               Daniel W. E. Green