[vsnet-chat 5366] Re: V4641 Sgr: July 8-9 data from Monard

["Toni Scarmato" <toniscarmato@libero.it>]

Hi Berto.

I saw also some observation as

20020708.916   119  (Maciej Reszelski)  !!!

also the report of

Vitaly Goranskij, Sternberg Astronomical Institute

.....for the last 10 days, we observe only quiet state in V4641 Sgr.
No flares. The light curve shape coincides well with that
published in IBVS 5068......

Repeat, it is possible that I have overestimated the magnitude but I am sure
on my reports.

Regards

Toni






----- Original Message -----
From: "Berto Monard" <LAGMonar@csir.co.za>
To: <toniscarmato@hotmail.com>
Sent: Friday, July 12, 2002 4:19 PM
Subject: [vsnet-chat 5364] Re: V4641 Sgr: July 8-9 data from Monard


> Dear Toni,
>
> with the 12.8 limiting magnitude of your observing equipment, as you
> put it, I doubt very much that you could have possibly seen V4641 Sgr on
> the reported nights. All observations from experienced observers point
> at a v magnitude for this McQ between 13.2 and 13.6 with possibly a
> couple of light flickerings reaching 13.0 as per Ouda measurements
> before 8 July.
>
> Regards,
>
> Berto
>
> >>> "Toni Scarmato" <toniscarmato@hotmail.com> 07/12/02 03:38PM >>>
> Dear all,
>
> regarding my observations of SGR4641 starting at 2002 July 5, I am sure
> that
> I saw the intense increase of magnitude of the "star".
> Also, I have observed this behaviour again the nigth of July 5 and 6.
>
> Yet, the flares that I Have reported are not simultaneous.
>
> To value the magnitude of the flares I Have used the stars GSC
> 6848:3606
> 10.9 and GSC 6848:3245 11.9. Because the short time to make the
> estimation
> of the magnitude it is possible that I Have overestimated the flares,
> but this is that I saw.
>
> Best Regards,
>
> Toni Scarmato
>
>
>
>
>
> ----- Original Message -----
> From: "Taichi Kato" <tkato@kusastro.kyoto-u.ac.jp>
> To: <vsnet-campaign-v4641sgr@ooruri.kusastro.kyoto-u.ac.jp>
> Cc: <vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp>
> Sent: Friday, July 12, 2002 12:18 PM
> Subject: [vsnet-chat 5363] V4641 Sgr: July 8-9 data from Monard
>
>
> > V4641 Sgr: July 8-9 data from Monard
> >
> > Dear Colleagues,
> >
> >    We have just received a long time-resolved CCD photometric run on
> > July 8-9 from Berto Monard.  The data show some modulations, but no
> > sharp flares.  The object has dramatically changed its behavior
> between
> > July 7 and 8.  The data also confirmed that all reported "flares"
> > simultaneously observed by Toni Scarmato must have been sprious!!
> > [Toni, please learn from your colleagues how to make reliable
> > observations! -> Reliability matters show go to vsnet-chat]
> >
> > Regards,
> > Taichi Kato
> > VSNET Collaboration team
> >
>

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