[vsnet-alert 15863] PNV J19150199+0719471 update

[Taichi Kato]

PNV J19150199+0719471 update

   Enrique de Miguel reported.  An O-C analysis suggests
we are still observing stage B, but the amplitude of
superhumps increased!

===

Comments:      Basically, same brightness as 48 h ago.
               Persisting double-wave pattern in the light curve.
               It seems that the secondary peak is taking the lead; actually,
               the amplitude of this secondary peak overtakes the primary peak.
               This is likely an indication that a transition is about to happen
               most probably, involving a phase shift. Definitely, this target
               is currently in its most interesting stage.
               The mean period considering JD .geq. 462 (which is when the
               double-wave pattern became very noticeable) is

                  f = 17.056(6) c/d,
                 2f = 34.191 c/d (~1st harmonic, almost same amplitude)
                  P = 0.058629(19) d

               This is to be compared with the mean Psh for the whole super
               which is f=17.136 c/d --> P_sh=0.058358(11) d.