Alert Notice 144: Supernova 1991X in NGC 4902 AND Monitoring of 1910-33 RY Sagittarii
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 144 (May 6, 1991)
SUPERNOVA 1991X IN NGC 4902