Electronic Telegram No. 5458
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
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(6098) MUTOJUNKYU
     V. Benishek, Belgrade Astronomical Observatory; P. Pravec, H. Kucakova,
K. Hornoch, P. Kusnirak, and P. Fatka, Ondrejov Observatory; J. Oey, Blue
Mountains Observatory, Leura, NSW, Australia; A. Leroy, Observatoire de
Besely, Ecole du Monde, Mahajanga, Madagascar; N. Ruocco, Osservatorio
Astronomico Nastro Verde, Sorrento, Italy; K. Ergashev, O. Burkhonov, and Sh.
Ehgamberdiev, Ulugh Beg Astronomical Institute, Tashkent, Uzbekistan; and R.
Goncalves, Linhaceira, Tomar, Portugal, report that photometric observations
taken with a 0.35-m telescope at the Sopot Observatory in Serbia, a 0.65-m
telescope at Ondrejov Observatory, a 0.35-m telescope at the Blue Mountains
Observatory, a 0.36-m telescope at the Observatoire de Besely, a 0.35-m
telescope at the Osservatorio Astronomico Nastro Verde, a 0.6-m telescope at
Maidanak Observatory in Uzbekistan, and a 0.35-m telescope at the Linhaceira
Observatory during Aug. 17-Sept. 29 reveal that minor planet (6098) is a
binary system with an orbital period of 12.430 +/- 0.003 hr.  The primary
shows a period of 2.7740 +/- 0.0002 hr and has a lightcurve amplitude of 0.17
magnitude at solar phases 3-11 degrees, suggesting a nearly spheroidal shape.
Mutual eclipse/occultation events that are 0.05-magnitude deep indicate a
secondary-to-primary mean-diameter ratio of 0.22 +/- 0.02.


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2024 October 18                  (CBET 5458)              Daniel W. E. Green