IAUC 8582: Sats OF (87); N SMC 2005

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                                                  Circular No. 8582Central Bureau for Astronomical TelegramsINTERNATIONAL ASTRONOMICAL UNIONMailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)CBAT@CFA.HARVARD.EDU (science)URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304Phone 617-495-7440/7244/7444 (for emergency use only)SATELLITES OF (87) SYLVIA     F. Marchis, Department of Astronomy, University of California,Berkeley; and P. Descamps, D. Hestroffer, and J. Berthier, Institutde Mecanique Celeste et de Calcul des Ephemerides, Observatoire deParis, report the discovery of a new satellite of (87) Sylvia(Marchis et al. 2005, Nature 436, 822).  S/2004 (87) 1, of diameterperhaps 7 km, with maximum separation 0".44 from the primary, has aprograde near-circular orbit with estimated a = 710 km, P = 1.379days.  Another satellite, S/2001 (87) 1, of diameter perhaps 18 km,previously reported by M. E. Brown and J.-L. Margot (IAUC 7588), isestimated by Marchis et al. to have a = 1360 km, P = 3.650 days.Bearing in mind that the discoverer (Pogson 1866, MNRAS 26, 311)named (87) Sylvia for Rhea Sylvia (or Silvia), the mother ofRomulus, with his twin brother the alleged founder of Rome, the IAUCommittee on Small-Body Nomenclature has approved the permanentdesignations and names (87) Sylvia I = Romulus and (87) Sylvia II =Remus for the outer satellite S/2001 (87) 1 and the inner satelliteS/2004 (87) 1, respectively.NOVA IN THE SMALL MAGELLANIC CLOUD 2005     W. Liller, Vina del Mar, Chile, reports his discovery, on twoTech Pan films taken on Aug. 6.388 UT with a 0.2-m Schmidt camera,of a possible nova (mag approximately 10.4) located at R.A. =1h15m.0, Decl. = -73o26' (equinox 2000.0); a photo on Mar. 23showed nothing at this position to mag 13.  L. A. G. Monard,Pretoria, S. Africa, reports the following CCD position of the newobject:  R.A. = 1h14m59s.92, Decl. = -73o25'35".8 (uncertainty +/-0".2; with magnitudes B = 12.0, V = 11.6, and R = 10.8 around Aug.7.84).     E. Mason, European Southern Observatory (ESO); A. Brandeker,Department of Astronomy and Astrophysics, University of Toronto; A.Ederoclite, ESO; and M. Della Valle, Istituto Nazionale diAstrofisica, Osservatorio di Arcetri, confirm that the new objectdiscovered by Liller is a classical nova in outburst.  An echellespectrogram (range 420-840 nm) of the nova was taken on Aug. 8.17UT with the ESO New Technology Telescope (+ EMMI).  A preliminaryanalysis shows that the spectrum is dominated by Balmer, Fe II (42and 74), and Na I (1) emission lines.  The H_beta emission lineappears as strong as the H_alpha line.  The line profile of theBalmer emissions is very broad and slightly asymmetric with astronger blue peak.  The average FWHM measured on the Balmer linesis about 3200 km/s.  There is a marginal evidence of a P-Cygabsorption on the blue wing of the H_beta emission, which possiblyindicates an expansion velocity of about 2100 km/s.                      (C) Copyright 2005 CBAT2005 August 11                 (8582)            Daniel W. E. Green

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