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[vsnet-campaign-dn 900] RE: AL Com: rapidly decline!!



Results from the last two nights:

2001-06-12.879  17.0C:
2001-06-13.883  15.5C

Regards,
Jochen Pietz

On 12-Jun-01 Ryoko Ishioka wrote:
> Dear colleagues,
> 
> Our yesterdays observation shows that AL Com is rapidly fading.
> Its magnitude is ~16.7 mag. At 8 June, the object was still bright
> at ~14.8 mag. So the decline rate during these three days is ~0.6 mag/day
> (before 8 June, the decline rate was ~0.1 mag/day).
> 
> AL Com was 14.7 at 10.949 June (UT) in the report of visual observations 
> from Gary Poyner. Probably, the rapid decline occured during 10.949 and
> 11.5 (UT): 24 dars after the onset of the current outburst. In the 1995 
> outburst, another long lasting outburst started following the rapid decline 
> 28 days after the the onset of the outburst. 
> 
> More observations in this phase are strongly needed.
> 
> Regards,
> Ryoko Ishioka
> VSNET Collaboration team

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