[vsnet-alert 20939] Re: PNV J20422233+2712111 is probably a dwarf nova (UGWZ?)
Gianluca Masi
gianluca at bellatrixobservatory.org
Sat Apr 22 11:57:43 JST 2017
Dear Colleagues,
this star was observed with the 14" robotic unit part of the Virtual Telescope
Project in Italy.
After two hours of observations, we see this transient is clearly showing
0.1-mag.large superhumps. with period of around 90 minutes.
More details will follow.
Best Regards
Gianluca Masi
Patrick Schmeer
Il 14/04/2017 21:57, Patrick Schmeer ha scritto:
> PNV J20422233+2712111 (UGWZ:)
>
> CBAT "Transient Object Followup Reports":
> http://www.cbat.eps.harvard.edu/unconf/followups/J20422233+2712111.html
>
> AAVSO forum thread:
> https://www.aavso.org/pnv-j204222332712111-new-transient-111-mag-vulpecula
>
> This object seems to be a dwarf nova in
> outburst rather than a classical nova.
> The outburst amplitude is apparently very
> large (9 magnitudes) --> probably UGWZ
> subtype.
>
> Time-resolved photometry is urgently
> required.
>
> Clear skies,
> Patrick
>
>
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