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			THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS 
				25 Birch Stteet, Cambridge, MA 02138 USA
			BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
			Tel. 617-354-0484	   FAX 617-354-0665


This Alert Notice may not be placed on any electronic bulletin board or mail service 
without written pennission from Janet A Mattei, Director, AAVSO.


				AAVSO ALERT NOTICE 161 (July 31,1992)


ANNOUNCEMENT OF 800 NUMBER TELEPHONE LINE FOR AAVSO HQ

An 800-number (toll-free) telephone line has been added at AAVSO Headquarters to enable 
our observers in the USA to report variable star observations, particularly of variable 
stars for NASA's Extreme Ultraviolet Explorer (EUVE) mission. The AAVSO's 800 number is:

				800 - 642 - EUVE (800 - 642 - 3883)

When calling in your observations please leave your name, phone number, and your 
observations, reporting the time in your LOCAL time (not UT or GMAT). Be sure to 
indicate whether your times are Standard or Daylight Savings.

For our observers outside the USA, please use our regular telephone number (617-354-0484). 
We will reimburse telephone charges for reporting observations, so please send us the list 
of your phone calls and the charges.

REQUESTS FOR DATA SUPPORT FOR SATELLITE OBSERVATIONS OF
VARIABLE STARS 

Astronomers scheduled to observe the variable stars listed below with Voyager, Extreme 
Ultraviolet Explorer (EUVE), Hubble Space Telescope (HST), and/or the International
Ultraviolet Explorer (IUE) have requested our assistance in the close monitoring of these
variable stars and informing them of their behavior, both for scheduling and correlation 
of multiwavelength observations:

1. OBSERVATIONS WITH VOYAGER. Astronomers at the Center for EUV Astrophysics will be 
observing the following cataclysmic variables with the Voyager satellite, and they have 
requested our assistance in monitoring them closely:

				0058+40	RX And	now - Aug 29, 1992
				2138+43 SS Cyg 	Aug 9 - Sep 21, 1992
				0409-71 VW Hyi	Sep 1 - Oct 13, 1992


Please monitor these stars during the indicated times and report your observations to
Headquarters.

2. OBSERVATIONS WITH EUVE. Accompanying is the list of variable stars to be surveyed with 
the EUVE satellite and their survey times. Please observe as many of them as you can and 
report your observations to HQ. We will shortly be mailing chart and reporting information 
to all observers. Until then, if you need the charts for any of the stars that will be 
observed in August, please call our 800 number. Be sure to give your name and the name(s) 
of the star(s).

3. REMINDERS FOR OBSERVATIONS WITH HST AND IUE (see AAV'SO Alert Notice 157)

  a. U Gem, VW Hyi, and IP Peg: Your notification of the outbursts of these stars are
crucial for the scheduling and observation of them with HST.
  b. YY Dra, TT Crt, and T Pyx: Your notification of the outbursts of these stars are
crucial for scheduling observations with IDE.

4. REMINDER FOR OBSERVATIONS OF LONG PERIOD VARIABLES FOR THE HIPPARCOS MISSION. 
The HIPPARCOS satellite is operating very successfully and continues to obtain excellent 
astrometric and photometric data on 245 large-amplitude variable stars. Your 
observations continue to play a very important role in predicting the behavior of 
these stars for scheduling satellite observations. Please continue your close 
monitoring of them. If you do not have the list of HIPPARCOS large amplitude 
variable stars, please call our 800 number and request the information.

Your participation, observation, and prompt telephone notification of the behavior of the
stars listed in this Alert Notice are crucial to the success of the space research programs
being carried out on them. Your observations are very much needed!

Good Observing and Clear Skies!!

Janet A. Mattei