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[vsnet-campaign-dn 198] IY UMa entered rapid decline phase


IY UMa entered rapid decline phase

   Our last night observation at Kyoto shows the magnitude of IY UMa was 
15.81 +/- 0.15 mag.  The decline rate is over 0.5mag/d, showing 
the object is in the final phase of this superoutburst.  
   It is interesting to study eclipse profiles during this phase, 
so more time-series obserbations are urged.

Regards,
Makoto Uemura, Ryoko Ishioka, Taichi Kato, and Katsura Matsumoto

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