AM Her

Alert Notice 234: Rare outburst of 1858+42 V493 Lyrae AND Second set of observations scheduled in international observing campaign on 1913+49 AM Herculis

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 234 (December 20, 1996)

RARE OUTBURST OF 1858+42 V493 LYRAE

We have been informed by G. Hanson, Cave Creek, AZ, of the rare outburst of
V493 Lyrae [R.A. 18h 59m 58s, Decl. +42o 50.4' (1950)].  Recent observations
of V493 Lyr include:

Alert Notice 322: Multicolor CCD campaign for AM Her to support XMM Newton observations AND BP Hyi eclipsing binary campaign

July 14, 2005

SUBJECT:
1. MULTICOLOR CCD CAMPAIGN FOR AM HER TO SUPPORT XMM NEWTON OBSERVATIONS
2. BP HYI ECLIPSING BINARY CAMPAIGN


1. MULTICOLOR CCD CAMPAIGN FOR AM HER TO SUPPORT XMM NEWTON OBSERVATIONS

Summary
The polar AM Her is going to be observed with the XMM Newton satellite observatory later this month. We have been asked to coordinate multicolor CCD ground based photometry during the observing periods.