[vsnet-chat 5367] Re: V4641 Sgr: July 8-9 data from Monard

["Maciej Reszelski" <macres@pro.onet.pl>]

> 
> 20020708.916   119  (Maciej Reszelski)  !!!
> 

Dear Toni, Taichi, Berto,

The recent state is still for me suprise. Well I'm using a GSC
standard stars that is the reason (I hope that my estimates are
some up). I record some fluctuations with amplitude around
0.4 mag. It's agree with Gorjansky data. The estimates which
pointed Toni is still mistery form me. First time I was watch star
in real time second by secon. Toni, I don't saw any major changes
but regarding 11.9 estimate. The field is low, and even with my 0.41
m V4641 Sgr is not fairly visible. So when you observed some field
very long human eye (or brain) may make some light flashes. I
made durning this some 10s pauses between 50 s run. A few
years ago I observed often meteors. Some observers and professionals
know about phenomen of ghost meteors. As in the V4641 case the
meteor event is very short. And when we make observation we watch
using different parts of eye. Remeber these parts have a different light
sensivity! When we changing some angle of view we may suspect
some flares like these. I don't think so that existing any observer which
make observation with 'static eye' :) And remeber about hard work
of human eye when he make real-time observation.

In the future. I recomended make observation one time per minute.
It is much more better in this case, I think...

Best regards,
Maciej

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