[Aavso-photometry] variable comp star in field of TT Ari?

[Christopher Lloyd]

Well, I suppose someone had to do it so I've looked at the ROTSE-1 photometry of the suspect variable at 02 06 19.09 +15 03 40.6 identified as GSC 1207-1550 = NSV 15440 = 2RXP J020619.1+150339. There is clearly a periodic variation with the most believable  being P = 0.9689(8), and the 1-day alias at P = 1.0335(15) and aliases near half a day looking less likely. The amplitude is only 0.05 magnitude but this has to be a good candidate RS CVn system. With all the interest in TT Ari at the moment there is a possible opportunity to study this suspect as well, although it will need a large field to be included on the same frame as the variable. The TASS data have a standard deviation of 0.088 magnitudes and add nothing.

Chris Lloyd

       
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