Here is my observation of GK Per.

2021 10 03.94 (UT) *12.78* ± 0,04 (filter V)

Best regards.

José Prieto Agrupación Astronómica de Madrid

El mar, 5 oct 2021 a las 8:14, FIDRICH Róbert (fidusz@gmail.com) escribió:

GK Per 211005.0569 130 FID

Robert Fidrich HAA/VSS

2021. 10. 5. 7:32 keltezéssel, Taichi Kato írta:

...

GK Per up to now

YYYYMMDD(UT) mag observer 20210915.9292 130 (Eddy Muyllaert) 20210918.7347 128cG (Yutaka Maeda) 20210919.1596 12.90C (Masao Funada) 20210920.9097 130 (Eddy Muyllaert) 20210921.969 128 (Gary Poyner) 20210922.7331 129cG (Yutaka Maeda) 20210922.9306 130 (Eddy Muyllaert) 20210923.7340 126cG (Yutaka Maeda) 20210923.9222 129 (Eddy Muyllaert) 20210924.017 129 (Gary Poyner) 20210924.7380 128cG (Yutaka Maeda) 20210925.974 12.98C (Gary Poyner) 20210927.9174 130 (Eddy Muyllaert) 20211001.816 130 (Hiroyuki Maehara) 20211003.4589 128V (Robert Fidrich) 20211003.528 128 (Hiroyuki Maehara) 20211003.776 128V (Pavol A. Dubovsky) 2021 10 03.9444 108 (Jose Ripero) 2021 10 03.992 12.82C (Gary Poyner)