A number of observers in the UK have returned negative results tonight, so unfortunately this looks like a false alarm.

Thanks to everyone who responded so quickly.

Gary

On Sun, 8 May 2022 at 20:20, Josch Hambsch <hambsch@telenet.be> wrote:
I will try to observe this target tonight from my backyard in Belgium.

Josch

On 08.05.2022 20:37, Patrick Schmeer via groups.io wrote:
> PR Herculis  (UGWZ)
> https://www.aavso.org/vsx/index.php?view=detail.top&oid=15127
>
> PR Her was fainter than mag. 16 on 2022 May 8.38 UT according
> to recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
> and Kochanek et al. 2017PASP..129j4502K) data:
> https://asas-sn.osu.edu/sky-patrol/coordinate/6c10f9f0-10b3-4980-a70c-006272247441
>
> Further observations are encouraged.
>
> Clear skies,
> Patrick
> -------
> Gary Poyner wrote on Sunday, 8 May 2022 at 15:16:59 UTC:
>
> Jose Ripero has reported (on vsobs share, May 7) that the UGWZ
> star PR Her is in outburst.
>
> HERPR   20220507.9597   13.6   OJR    Active
>
> Since its discovery in 1951 by Hoffmeister (from a photographic plate)
> the only major outburst to have been covered well occurred in
> November 2011.  Since then there have been several faint detections
> (below mag 15) reported to the AAVSO database (the last one being
> in June 2020 at 16.7V by Roger Pickard).  The quiescent magnitude
> is around 21.0.
>
> Confirmation is urgently requested.
>
> Gary
>
>
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Gary Poyner FRAS
garypoyner@gmail.com
www.variablestars.co.uk