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[vsolj-alert 640] OGLE-2000-BUL-12




 現在急増光中のマイクロレンズ現象の速報が入りました。観測は難しいと思われ
 ますが、可能な方はチャンレジしてみてください。

HIGH MAGNIFICATION MICROLENSING EVENT

Observations collected by OGLE during the last few nights at the Las
Campanas Observatory indicate that OGLE-2000-BUL-12 microlensing event
will be a very high magnification event. On Mar. 31.35, 2000 (UT) the
magnification was A=21 and it was fast rising. The maximum of light is
predicted on Apr. 1.71, 2000 (UT). Unfortunately, OGLE will not be able
to follow this event after Apr. 1.4, 2000 due to Chilean telescope time.

Follow up observations are strongly encouraged !!!

Field          BUL_SC43
StarNo         244614
RA(J2000.0)    17:35:13.40
Dec(J2000.0)   -27:35:18.7
Remarks        

  Tmax   2451636.213     0.163
  tau         28.304     0.877
  Amax         ???
  Dmag         ???
  I0          18.915     0.008

Finding charts, light curve plots, photometric data (updated regularly)
can be found in:
 
http://vsnet.astrouw.edu.pl/~ogle/ogle2/ews/bul-12.html
http://vsnet.astrouw.edu.pl/ogle/ogle2/ews/2000/bul-12.tar.gz
 
regards, OGLE team.

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