[vsnet-outburst 10637] Re: Fw: [baavss-alert] EG Cnc in outburst

Hiroyuki Maehara mira at cetus-net.org
Tue Oct 13 03:20:22 JST 2009


I confirmed the outburst of EG Cnc.
The object continues to fade.

object         YYYYMMDD(UT)   mag      code
CNCEG          20091012.73464 157C     Mhh.VSOLJ


On Mon, Oct 12, 2009 at 17:06:37, Gary Poyner wrote:
> ----- Original Message ----- 
> From: "RICHARD MILES" <rmiles.btee at btinternet.com>
> To: <baavss-alert at yahoogroups.com>
> Cc: "Alison Tripp (FT)" <alison.tripp at faulkes-telescope.com>
> Sent: Monday, October 12, 2009 4:56 PM
> Subject: [baavss-alert] EG Cnc in outburst
> 
> 
> >Observations using the Faulkes Telescope between 2009 Oct 12 13:43-14:27 
> >UT
> >show that the star continues to fade at a faster rate than that reported 
> >by
> >Ian Miller.  17 x 40 sec V(Green)- filter images show a very clear decline
> >from V=15.02 to V=15.10 (+/-0.01 mag) during this time interval.  A linear
> >fit to the data gives a fade rate of 2.6 +/- 0.4 mag/day.  There is some
> >evidence that the rate of decline is slowing.  Additional images have been
> >obtained and will be analysed in due course.
> >
> >Photometry reported is referenced to an ensemble average of three stars
> >(12.8, 13.8 and 15.4 as shown on AAVSO chart).  Precision of photometry 
> >for
> >single images is 0.006 mag.
> >
> >Richard Miles
> >
> >P.S.  Thanks Ian (and Hazel's earlier negative observations) for 
> >monitoring
> >this star and discovering its very recent activity.  Nice work.
> >
> >
> >----- Original Message ----- 
> >From: "Ian Miller" <furzehillobservatory at hotmail.com>
> >To: <baavss-alert at yahoogroups.com>
> >Sent: Monday, October 12, 2009 1:46 PM
> >Subject: [baavss-alert] Re: EG Cnc in outburst
> >
> >
> >>EG Cnc faded by 0.09 mag.(a rate of ~1 mag/day) throughout a 2.2 hour 
> >>time
> >>series after this morning's detection.
> >>
> >>These observations may be viewed on the AAVSO's 'Light Curve Generator'
> >>website.
> >>
> >>Best wishes from Ian.
> >>

-- 
Hiroyuki Maehara
mira at cetus-net.org
http://www.cetus-net.org/


More information about the vsnet-outburst mailing list