L'asteroide (2242) Balaton è un asteroide doppio, binario. Questa scoperta è, prima di tutto, tutta nostra: di Alessandro Marchini, di Riccardo Papini, di Lorenzo Franco.
La collaborazione degli amici Paolo Bacci dalla Montagna Pistoiese e Albino Carbognani dalla Valle d'Aosta, il coordinamento fondamentale di Petr Pravec dalla Repubblica Ceca.
Central Bureau for Astronomical Telegrams
(2242) BALATONA. Marchini, F. Salvaggio, and R. Papini, Astronomical Observatory, Dipartimento di Scienze Fisiche della Terra e dell'Ambiente, University of Siena; P. Pravec, Ondrejov Observatory; D. Klinglesmith, Magdalena Ridge Observatory; D. Pray, Sugarloaf Mountain Observatory, South Deerfield, MA, U.S.A.; P. Bacci, Astronomical Observatory of San Marcello Pistoiese, Italy; L. Franco, Balzaretto Observatory, Rome, Italy; and A. Carbognani, the Etscorn Campus Observatory (Socorro, NM, U.S.A.), a 0.50-m telescope at Astronomical Observatory of the Aosta Valley Autonomous Region, Italy, report that photometric observations taken with a 0.30-m telescope at the Astronomical Observatory of the University of Siena, a 0.36-m telescope at The primary shows a period of 2.79792 +/- 0.00009 hr and has a lightcurve the Sugarloaf Mountain Observatory, and a 0.60-m telescope at the San Marcello Pistoiese Observatory during 2015 Dec. 27-2016 Jan. 16 reveal that minor planet (2242) is a binary system with an orbital period of 12.96 +/- 0.01 hr. mean-diameter ratio of 0.25. amplitude of 0.18 mag at solar phases 5-16 degrees, suggesting a nearly spheroidal shape. Mutual eclipse/occultation events that are 0.03- to 0.08-magnitude deep indicate a lower limit on the secondary-to-primary.(C) Copyright 2015 CBAT2015 November 24 (CBET 4201)Daniel W. E. GreenEcco il link alla CBET: http://www.cbat.eps.harvard.edu/iau/cbet/004200/CBET004243.txtMK-C 12" f/5.6 + GM-2000 + STL-6303Location: Siena
