Re: U Mon, interchange of primary minima > Does it happen only with minima I or is it possible that there are two > consecutive minima II ? R Sct frequently shows consecutive minima II (e.g. late 1996-mid 1997). > Why does it happen? I hope Ishida-san (NHAO), "the master of pulsators", could explain the cause of this phenomenon :-) Regards, Taichi Kato