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SN 1999gn

Alert Notice 268: 1216+05 Supernova 1999gn in NGC 4303 = M61

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
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AAVSO ALERT NOTICE 268 (December 20, 1999)

1216+05 SUPERNOVA 1999gn IN NGC 4303 = M61

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484