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Re: [AAVSO-DIS] R CrB > I would not recommend to observe R CrB every half an hour while it is fading, > to avoid biases. And in my opnion completely redundant : this star is so > widely observed ! In some "dust fading" objects, short-term variations (less than 1 hour) are suspected. Some of these variations are considered to reflect transient dust formation and destruction(?) [I read this in some recent book, but don't have a bibliographic reference]. It is not yet obvious whether oversampled observations are useless. Regards, Taichi Kato
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