Electronic Telegram No. 5396
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


(2080) JIHLAVA
     V. Benishek, Belgrade Astronomical Observatory; and P. Pravec, Ondrejov
Observatory, report that photometric observations taken with a 0.35-m
telescope at the Sopot Observatory in Serbia during 2023 Dec. 17-2024 Feb. 14
reveal that minor planet (2080) is a binary system with an orbital period of
25.83 +/- 0.01 hr.   The primary shows a period of 2.7088 +/- 0.0002 hr and
has a lightcurve amplitude of 0.17 mag at solar phases 4-7 degrees,
suggesting a nearly spheroidal shape.  Mutual eclipse/occultation events that
are 0.09 magnitude deep indicate a secondary-to-primary mean-diameter ratio
of 0.29 +/- 0.02.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2024 CBAT
2024 May 20                      (CBET 5396)              Daniel W. E. Green