[vsnet-alert 12162] Re: V4641 Sgr active

Hiroyuki Maehara mira at cetus-net.org
Fri Sep 10 23:53:44 JST 2010


 I carried out time-resolved photometry of the object from 
JD 2455449.983 to 2455450.057. The data show no significant variation.
The mean brightness during the observation is consistent with the quiescent 
level.

On Fri, Sep 10, 2010 at 21:26:38, Hiroyuki Maehara wrote:
>  The object was at normal brightness a few minutes before the outburst 
> detection by Stubbings.
> 
> object         YYYYMMDD(UT)   mag      code
> SGRV4641       20100909.42550 13.51V   Mhh.VSOLJ
> SGRV4641       20100910.43697 13.45V   Mhh.VSOLJ
> 
> -- 
> Hiroyuki Maehara
> mira at cetus-net.org
> 
> On Fri, Sep 10, 2010 at 21:27:44, Rod Stubbings wrote:
> > V4641 Sgr appears to be above its normal optical brightness as shown by the 
> > observations tonight. Clouds prevented further obs.
> > 
> > SGRV4641       100910.439   124  Stu.RASNZ
> > SGRV4641       100910.443   127  Stu.RASNZ
> > SGRV4641       100910.449   127  Stu.RASNZ
> > SGRV4641       100910.451   126  Stu.RASNZ
> > SGRV4641       100910.453   127  Stu.RASNZ
> > SGRV4641       100910.458   124  Stu.RASNZ
> > SGRV4641       100910.485   125  Stu.RASNZ
> > 
> > Regards,
> > Rod.
> > 
> > ________________________________
> > 
> > Rod Stubbings,
> > Tetoora Observatory,
> > Tetoora Road,
> > Vic, Australia.
> > stubbo at sympac.com.au
> > http://rodstubbingsobservatory.wordpress.com/
> > 
> > _________________________________ 


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