[Aavso-photometry] RE: New CV: SDSS J170213.26+322954.1 outburst

[Pertti Pääkkönen]

Huomenta,

Komeaa käyrää taas :-) Meillä olisi ollut säätä, mutta emme ole päässeet 
tornille havaitsemaan viime aikoina. Työt haittaavat harrastuksia...

Pertti

On Wednesday 05 October 2005 21:15, Arto.Oksanen at tietoenator.com wrote:
> I started my observations tonight at 17:40 UT and got the first eclipse at
> 17:44 UT. The star is bright about CV=14.7.
>
> Quick period calculation from David's timings gives P=0.1000(86).
>
> I have a 'live' preliminary light curve at the observatory web site:
> http://nyrola.jklsirius.fi/ccd/2005/data1005/SDSS1702_20051005C.png
>
> br,
>
> arto
> --
> Arto Oksanen                         arto.oksanen at jklsirius.fi
> Jyvaskylan Sirius ry, Kyllikinkatu 1, FI-40100 Jyväskylä, Finland
> Tel: +358-40-5659438                         Fax: +358-14-4157803
> Nyrola Observatory  http://www.ursa.fi/sirius/nytt/nytt_info.html
>
> -----Original Message-----
> From: cvnet-outburst at yahoogroups.com
> [mailto:cvnet-outburst at yahoogroups.com] On Behalf Of David Boyd Sent: 5.
> lokakuuta 2005 3:10
> To: arne; aavso-photometry at aavso.org
> Cc: BAAVSS alert; CVnet outburst; cba-news
> Subject: [cvnet-outburst] Re: [baavss-alert] Re: [Aavso-photometry] New CV:
> SDSS J170213.26+322954.1 outburst
>
> Another eclipse occurred at 22:31UT. There was a slow rise and fall of
> about 0.6 magnitude between the eclipses. I have now lost it behind trees.
> I'll upload the data soon.
>
> Regards,
> David Boyd (BDG)
>
> ----- Original Message -----
> From: "David Boyd" <drsboyd at dsl.pipex.com>
> To: "arne" <arne at aavso.org>; <aavso-photometry at aavso.org>
> Cc: "BAAVSS alert" <baavss-alert at yahoogroups.com>; "CVnet outburst"
> <cvnet-outburst at yahoogroups.com>; "cba-news"
> <cba-news at cba.phys.columbia.edu> Sent: Tuesday, October 04, 2005 9:43 PM
> Subject: [baavss-alert] Re: [Aavso-photometry] New CV: SDSS
> J170213.26+322954.1 outburst
>
> > An eclipse of this system occurred with minimum at 20:07UT. The depth of
> > the eclipse was approximately 1.8 magnitudes. Outside eclipse the
> > lightcurve appears
> > to be flat.
> >
> > Regards,
> > David Boyd (BDG)
> >
> > ----- Original Message -----
> > From: "arne" <arne at aavso.org>
> > To: <aavso-photometry at aavso.org>
> > Sent: Tuesday, October 04, 2005 8:34 PM
> > Subject: Re: [Aavso-photometry] New CV: SDSS J170213.26+322954.1 outburst
> >
> >> Richard Huziak wrote:
> >>> Pat or Tonny,
> >>>
> >>> What is the anticipated max mag for the outburst, and is there a
> >>> preferred ref star (& mag) you have currently chosen for your
> >>> reductions?
> >>
> >> It was roughly V=17.6 out of eclipse in quiescence, so the
> >> current magnitude of V=13.7 or so is probably near max.
> >> The eclipses are roughly 1.5mags deep in quiescence; I don't
> >> know how deep they will be in outburst. As for comp stars, one of
> >> the following is probably ok:
> >>    RA  (J2000)  DEC         V     B-V
> >> 17:02:24.71  +32:30:37.3  12.538  0.216  saturated?
> >> 17:02:23.13  +32:27:29.7  14.379  0.738
> >> 17:02:06.20  +32:31:30.9  14.443  0.746
> >> 17:02:07.29  +32:25:19.4  13.813  0.546
> >>
> >> Arne
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-- 
Pertti Pääkkönen, PhD, Laboratory engineer
University of Joensuu, Department of Physics, Finland
Tel: +358 13 251 3238
Fax: +358 13 251 3290