--------------------------------------------- PLANET ANOMALY ALERT 2005 #2 (issued 20-May, 7:20 UT) --------------------------------------------- OGLE 2005-BLG-158 / MOA 2005-BLG-17 peaks at A > 90 Dear Colleagues, despite bad weather at ESO LaSilla, PLANET succeeded in obtaining several images on event OGLE 2005-BLG-158 / MOA 2005-BLG-17 between HJD=2453510.7526 (20-May, 6:04 UT) and HJD=2453510.7963 (20-May, 7:07 UT) which show that the event is near peak at a magnification of around 90. Further monitoring is in progress. At the time being, we are unable to tell whether the event is affected by to be finite-source effects or lens binarity, or even both. Therefore, further dense observations are strongly encouraged at this stage. While the observation of finite-source effects provides the opportunity to resolve the stellar atmosphere, events where the angular separation between lenses and sources becomes very small, resulting in very large peak magnifications, harbour a large potential for planets around the lens star to be revealed. We provide a light curve plot and data files for this event on our webpage, which are frequently updated. Event: OGLE 2005-BLG-158 / MOA 2005-BLG-17 RA (J2000): 18:06:04.24 Dec (J2000): -28:30:51.58 The baseline I magnitude reported by the OGLE team is 15.434. The baseline I magnitude reported by the MOA team is 15.68. For more information: PLANET: http://planet.iap.fr PLANET/RoboNet: http://star-www.st-and.ac.uk/~robonet/2005/micro_events.html OGLE: http://www.astrouw.edu.pl/~ftp/ogle/ MOA: http://www.physics.auckland.ac.nz/moa/ MicroFUN: http://www.astronomy.ohio-state.edu/~microfun/ -------------- 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.