Electronic Telegram No. 4272
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
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Prepared using the Tamkin Foundation Computer Network


(5674) WOLFF
      A. Aznar, Isaac Aznar Observatory, Centro Astronomico del Alto Turia,
Spain; P. Pravec, Ondrejov Observatory; and J. Oey and R. Groom, Blue
Mountains Observatory, Leura, NSW, Australia, report that photometric
observations taken with a 0.35-m telescope at the Isaac Aznar Observatory
in Spain and 0.35-m and 0.30-m telescopes at the Blue Mountains
Observatory obtained during 2015 Oct. 10-Dec. 18 reveal that the minor
planet (5674) is a binary system with an orbital period of 93.7 +/- 0.2 hr.
Mutual eclipse/occultation events that are up to 0.70-magnitude deep
indicate a lower limit on the secondary-to-primary mean-diameter ratio of
0.80.  Rotations of the components appear to be synchronous with the
orbital motion and a mean amplitude of the combined primary plus secondary
rotational lightcurve is 0.52 mag at solar phases 5-28 deg.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2016 CBAT
2016 April 23                    (CBET 4272)              Daniel W. E. Green