Date: Wed, 16 Jun 1999 07:58:39 +0200
Subject: PLANET ANOMALY ALERT: OGLE-1999-BUL-23
From:    The PLANET Collaboration

Dear Colleagues,

The PLANET collaboration has detected an anomaly in the on-going 
microlensing event OGLE-1999-BUL-23. Recent PLANET observations 
from Chile and South Africa indicate this event brightened
by approximately 1.3 magnitudes in 7 hours on about JD 2451341.6,
then apparently fell and has now  risen again.
The event is currently A~7.5. Future behaviour is uncertain and
further observations are strongly encouraged. 

Event:		 OGLE 1999-BUL-23
RA  (J2000):	 18:07:45.14
Dec (J2000):	-27:33:15.4

Observations, both photometric and spectrographic are encouraged. 
Finding charts and future update information can be found on the 
PLANET web page at:

http://www.astro.rug.nl/~planet.

OGLE information on this event can be found at the OGLE alert 
web page at:  http://www.astrouw.edu.pl/~ftp/ogle/ogle2/ews/bul-23.html