Alert Notice 283: Rare superoutburst of 1227+14 AL Comae Berenices AND 1902+11 Nova Aquilae 2001 - update and new chart [V1548 Aql]
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
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AAVSO ALERT NOTICE 283 (May 21, 2001)
RARE SUPEROUTBURST OF 1227+14 AL COMAE BERENICES