---------------------------------------------
                        PLANET ANOMALY UPDATE
                              2004 #3-2
                      (issued 6-Jun, 15:35 UT) 
             ---------------------------------------------

                  OGLE 2004-BLG-273 shows strong rise 



Dear Colleagues,

PLANET data taken on OGLE 2004-BLG-273 with the Danish 1.54m at ESO LaSilla
(Chile) and the Canopus 1m near Hobart (Tasmania, Australia) as well as OGLE
data revealed an increase in magnification by 1.2 mag since the caustic exit,
where the event currently rises by about 0.08 mag per hour. 
This means that a peak and/or caustic passages or approaches can be expected
soon. Dense monitoring is recommended in order to yield an unambiguous and
well-constrained measurement of the mass ratio of the underlying binary lens
that caused this event. This will lead to confirmation or rejection of the
hypothesis that the lens harbours a planet.

PLANET intends to keep you informed about the latest developments on this
event.

Event:            OGLE 2004-BLG-273
RA (J2000):       17:47:14.67  
Dec (J2000):      -35:43:57.3 

The baseline I magnitude reported by the OGLE team is 19.683.

More information, including lightcurves showing the collected data, is available 
from PLANET at 'http://planet.iap.fr' or from OGLE at
'http://www.astrouw.edu.pl/~ftp/ogle/ogle3/ews/blg-273.html'. 

--------------

On behalf of the PLANET collaboration,

Martin Dominik

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
If you prefer not to receive further PLANET Anomaly Alerts, please send an
e-mail to planet@iap.fr.