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[vsnet-chat 1485] Re: observing



     When the seeing is worse than 2" or varies rapidly, my errors for visual
estimates
of faint variables usually double (+/- 0.2 instead of +/- 0.1 mag).  For
brighter variables,
I usually defocus the stars anyway, so poor seeing doesn't affect these
estimates.

Robert J. Modic (MRV)
AAVSO




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