Electronic Telegram No. 5366
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


(6086) VRCHLICKY
     L. Franco, Balzaretto Observatory, Rome, Italy; P. Pravec, Ondrejov
Observatory; V. Benishek, Belgrade Astronomical Observatory; R. Durkee, Shed
of Science South Observatory, Pontotoc, TX, U.S.A.; L. Buzzi and M. Calabro,
Schiaparelli Observatory, Varese, Italy; G. Galli, GiaGa Observatory, Pogliano
Milanese, Italy; P. Bacci and M. Maestripieri, San Marcello Pistoiese
Observatory, San Marcello Pistoiese, Italy; N. Montigiani and M. Mannucci,
Osservatorio Astronomico Margherita Hack, Lastra a Signa, Italy; A. Marchini
and R. Papini, Astronomical Observatory University of Siena, Siena, Italy;
N. Ruocco, Osservatorio Astronomico Nastro Verde, Sorrento, Italy; M.
Tombelli, M. Iozzi, and M. Lombardo, Beppe Forti Astronomical Observatory,
Montelupo Fiorentino, Italy; G. Scarfi, Iota Scorpii Observatory, La Spezia,
Italy; and G. Baj, M57 Observatory, Saltrio, Italy, report that photometric
observations taken with a 0.35-m telescope at the Sopot Observatory in Serbia,
a 0.50-m telescope at the Shed of Science South Observatory, a 0.84-m
telescope and 0.36-m at the Schiaparelli Observatory, a 0.36-m telescope at
the GiaGa Observatory, a 0.60-m telescope at the San Marcello Pistoiese
Observatory, a 0.36-m telescope at the Osservatorio Astronomico Margherita
Hack, a 0.30-m telescope at the Astronomical Observatory University of Siena,
a 0.35-m telescope at the Osservatorio Astronomico Nastro Verde, a 0.40-m
telescope at the Beppe Forti Observatory, a 0.40-m telescope at the Iota
Scorpii Observatory, and a 0.35-m telescope at the M57 Observatory during
2023 Nov. 17-2023 Dec. 18 reveal that minor planet (6086) is a binary system
with an orbital period of 22.61 +/- 0.01 hr.  The primary shows a period of
2.7674 +/- 0.0001 hr and has a lightcurve amplitude of 0.07 mag at solar
phases 1-12 degrees, suggesting a nearly spheroidal shape. Mutual eclipse/
occultation events that are 0.05 to 0.08 magnitude deep indicate a lower
limit on the secondary-to-primary mean-diameter ratio of 0.22.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2024 CBAT
2024 March 11                    (CBET 5366)              Daniel W. E. Green