[Iaude] CBET 4704: ((2516) ROMAN

quai at eps.harvard.edu quai at eps.harvard.edu
Fri Dec 13 02:01:35 EST 2019

                                                  Electronic Telegram No. 4704
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau at eps.harvard.edu (alternate cbat at iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network

(2516) ROMAN
     V. Benishek, Belgrade Astronomical Observatory; P. Pravec, Ondrejov
Observatory; R. Durkee, Shed of Science South Observatory, Pontotoc, TX,
U.S.A.; M. Husarik, M. Pikler, and G. Cervak, Skalnate Pleso Observatory; F.
Pilcher, Organ Mesa Observatory, Las Cruces, NM, U.S.A.; V. Chiorny and O.
Mikhalchenko, Kharkiv Observatory; and J. Oey, Blue Mountains Observatory,
Leura, NSW, Australia, 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 0.61-m telescope at the Skalnate
Pleso Observatory, a 0.35-m telescope at the Organ Mesa Observatory, a 0.70-m
telescope at the Chuguev station of the Kharkiv Observatory in Ukraine, and a
0.35-m telescope at the Blue Mountains Observatory during Oct. 22-Dec. 6
reveal that minor planet (2516) is a binary system with an orbital period of
16.220 +/- 0.004 hr.  The primary shows a period of 2.6266 +/- 0.0004 hr and
has a lightcurve amplitude of 0.07 magnitude at solar phases 2-17 degrees,
suggesting a nearly spheroidal shape.  Mutual eclipse/occultation events that
are 0.06 to 0.11 magnitude deep indicate a secondary-to-primary mean-diameter
ratio of 0.23 +/- 0.02.

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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2019 CBAT
2019 December 13                 (CBET 4704)              Daniel W. E. Green

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