[vsnet-alert 24122] Re: TCP J21040470+4631129 another bright outburst!

FIDRICH Róbert fidusz@gmail.com via vsnet-alert vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
Wed Apr 1 18:59:35 JST 2020

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

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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