The August nights has finally arrived, so I tried to observe TU Her and was discouraged by unexpectedly high O-C value 0.0236 got on VarAstro (or 0.0217 by my spreadsheet). Fortunately, literally of pair of weeks ago the most experienced observers got close results (if my calculations based on JD are correct):
2025-07-19, Teófilo Arranz (ATE) O-C = 0.0272
2025-07-21, Gerard Samolyk (SAH) O-C = 0.0208
So, if there is not mistake, I kindly ask them to add their results to the VarAstro database (or explain me the reason of mistake, if I did it).
