Electronic Telegram No. 5536
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
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(8297) GERARDFAURE
     G. Faure, Vaison la Romaine, France; Y. Jongen, "Deep Sky Chile"
Observatory and Observatoire de Rasteau, France; P. Pravec, Ondrejov
Observatory; and A. Wunsche, Observatoire de Baronnies Provencales, France,
report that photometric observations taken with a 0.43-m telescope at the
"Deep Sky Chile" Observatory, a 0.43-m telescope at the Observatoire de
Rasteau, and a 0.82-m telescope at the Observatoire de Baronnies Provencales
during Jan. 27-Feb. 6 reveal that minor planet (8297) is a binary system with
an orbital period of 18.82 +/- 0.01 hr.  The primary shows a period of 3.0459
+/- 0.0003 hr and has a lightcurve amplitude of 0.14 magnitude at solar phases
2-6 degrees, suggesting a nearly spheroidal shape.  Mutual eclipse/occultation
events that are 0.13 magnitude deep indicate a lower limit on the secondary-
to-primary mean-diameter ratio of 0.36.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2025 CBAT
2025 April 4                     (CBET 5536)              Daniel W. E. Green