AAVSO Alert Notice 645 announces a campaign on LPVs in support of a maser study. Please see the notice for details and observing instructions.
Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ
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AAVSO Alert Notice 660 gives the revised target list for the LPV SiO maser campaign announced in AAVSO Alert Notice 645. The stars added, V657 Cas and V850 Cas, now have sequences; the stars V1301 Cyg and V1659 Cyg have been dropped. Please see Alert Notice 660 for details and observing instructions.
Many thanks, and good observing,
Elizabeth O. Waagen, AAVSO HQ