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Alert Notice 229: Request and reminder to monitor 2138+43 SS Cygni for observations with HST and with EUVE, RXTE, and SAX AND Reminder - 0207-63 WX Hydri to be observed with Hubble Space Telescope

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET:  aavso@aavso.org
Tel. 617-354-0484       FAX 617-354-0665

AAVSO ALERT NOTICE 229 (September 18, 1996)

REQUEST AND REMINDER TO MONITOR 2138+43 SS CYGNI FOR OBSERVATIONS WITH HST
AND WITH EUVE, RXTE, AND SAX

Alert Notice 253: Special and unique optical monitoring request - 1522+45 GRB 990123 - gamma-ray burster event with bright optical counterpart

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET:  aavso@aavso.org
Tel. 617-354-0484          FAX 617-354-0665

AAVSO ALERT NOTICE 253 (January 28, 1999)

SPECIAL and UNIQUE OPTICAL MONITORING REQUEST:  1522+45  GRB 990123 -
GAMMA-RAY BURSTER EVENT WITH BRIGHT OPTICAL COUNTERPART

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