Electronic Telegram No. 5583
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
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(8895) NHA
     V. Benishek, Belgrade Astronomical Observatory; P. Pravec, P. Kusnirak,
and P. Fatka, Ondrejov Observatory; J. Oey, Blue Mountains Observatory, Leura,
NSW, Australia; and K. Ergashev and O. Burkhonov, Ulugh Beg Astronomical
Institute, Tashkent, Uzbekistan, report that photometric observations taken
with a 0.35-m telescope at the Sopot Observatory in Serbia, a 0.35-m telescope
at the Blue Mountains Observatory, and a 0.6-m telescope at Maidanak
Observatory in Uzbekistan during June 1-July 2 reveal that minor planet (8895)
is a binary system with an orbital period of 15.22 +/- 0.01 hr.  The primary
shows a period of 2.7629 +/- 0.0001 hr and has a lightcurve amplitude of 0.10
magnitude at solar phases 4-19 degrees, suggesting a nearly spheroidal shape.
Mutual eclipse/occultation events that are 0.08 magnitude deep indicate a
lower limit on the secondary-to-primary mean-diameter ratio of 0.28.


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                         (C) Copyright 2025 CBAT
2025 July 18                     (CBET 5583)              Daniel W. E. Green