[IAUC] CBET 1686: 20090205 : eta CARINAE

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                                                  Electronic Telegram No. 1686
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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eta CARINAE
     E. Fernandez-Lajus, Observatorio Astronomico de La Plata, Facultad de
Ciencias Astronomicas y Geofisicas, Universidad Nacional de La Plata, on
behalf of the "La Plata eta Carinae monitoring group" (cf. CBET 1654), reports
that eta Car has reached the minimum related to the 2009.0 event in the U, B,
V, R, and I bands around 2009 Jan. 26-27, as determined from CCD observations
that were obtained in Argentina using the 0.8-m "Virpi S. Niemela" telescope
at La Plata Observatory (as detailed by Fernandez-Lajus et al. 2009, A.Ap.
493, 1093) and the 0.6-m "Helen Sawyer Hogg" telescope at Complejo Astronomico
El Leoncito.  The minimum was reached after about a 0.15-mag dip from maximum
in the BVRI bands and 0.23 mag in U.  The BVRI light curves are available at
the following website URL:  http://etacar.fcaglp.unlp.edu.ar/.


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                         (C) Copyright 2009 CBAT
2009 February 5                  (CBET 1686)              Daniel W. E. Green