[vsnet-alert 24130] Re: TCP J21040470+4631129 another bright outburst!

[反保雄介]

T. Vanmunster and Tomas Tordai reported time-resolved observations of this
outburst, though no obvious variation was detected.
This fact may suggest that TCP J2104 is still in the early phase of Stage A
superhump.

Observations are encouraged!
Yusuke

2020年4月1日(水) 18:59 FIDRICH Róbert fidusz at gmail.com via vsnet-alert <
vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>:

> Dear Friends,
>
> I can confirm the outburst ot this star. I've just detected it on my
> DSLR images made of the CO Cygni - NGC 7000 field:
>
> TCP J21040470+4631129 20200401.054  10.6TG  FID  Outburst!
>
> Canon EOS 1000D + 180mm f/2.8 Zeiss Sonnar telehoto lens, Budapest, Hungary
>
> Clear skies,
>
> Róbert Fidrich
> Vendégcsillag-kereső (Guest Star Hunter) programme
> HAA/VSS
>
>
>
> 2020. 04. 01. 9:47 keltezéssel, Keisuke Isogai írta:
> > This outburst should be a superoutburst and must be
> > showing growing superhumps now. However, we can
> > observe this object only for 2-3 hours before sunrise.
> > It is encouraged to observe this object on many sites.
> >
> > On 2020/03/31 21:33, Denis Denisenko d.v.denisenko at gmail.com via
> > vsnet-alert wrote:
> >> This dwarf nova in Cygnus is in outburst again on the recent 3x60-sec
> >> unfiltered images obtained remotely with iTelescope T11 instrument in
> >> Mayhill, New Mexico, at 11:27-11:30 UT on Mar. 31.
> >>
> >> TCP J21040470+4631129
> >>    20200331.4780  11.11CV  T11  Outburst!
> >>
> >> As shown by the recent AAVSO data from five European observers, the
> >> variable has not returned to the quiescent level after the conjunction
> >> with
> >> the Sun. The star was at 15.4-15.2 CV on Mar. 28 and Mar. 30 - the
> >> same as
> >> during the observations on Feb. 01-05.
> >>
> >> The current magnitude is similar to the maxima of 2019 Aug. 28 and
> >> Dec. 11
> >> superoutbursts. Both lasted about a week.
> >>
> >> Denis Denisenko
> >>
> >
>


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京都大学大学院理学研究科宇宙物理学教室 M2
Kyoto University, Graduate School of Department of Astronomy, M2
反保 雄介 Yusuke TAMPO
MAIL: tampo at kusastro.kyoto-u.ac.jp

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