W Vir: comparison with Arp (1957) observations

The phases are computed from the GCVS ephemeris, with no shift for Arp's data, with a shift of +0.05*P0 for my data. Then the minimum and maximum of my light curves coincide with those of Arp.

Green and Blue circles: V and B magnitudes, respectively, from Arp.
Brown and Purple squares: my V and B magnitudes.

B-V from Arp tends to be greater than from my measurements:

Red: from Arp magnitudes; Blue dots: from my measurements.


Red: The temperature from Arp magnitudes; Blue dots: from my measurements.


Red: The radius from Arp magnitudes and the surface brightness method; Blue dots: from my measurements.