A new BY Dra-type star, the GPX-TF21D-1577 (GSC 02105-01113 in Hercules) discovered during the GPX survey and submitted to VSX by P. Benni, A. Burdanov, F. Salvaggio, A. Marchini, R. Papini and following the pubblication of Oelkers et. al.
Magnitude variation goes from 11.77 to 11.88 V
This is the plot showing the long term variation:
Epoch: HJD 2459011.408
Period: 0.90679 d
This is the record to the VSX record: https://www.aavso.org/vsx/index.php?view=detail.top&oid=2214150