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				Tel. 617-354-0484	FAX 617-354-0665

				AAVSO ALERT NOTICE 209 (June 21,1995)


We have been informed by AAVSO member Jack Nordby, Moorhead, MN, and by Tonny 
Vanmunster, Landen, Belgium (Belgian Astronomical Society, WS, Cataclysmic Variables 
Circular (CVC) No. 42), that the dwarf nova type cataclysmic variable DX And is 
undergoing an outburst, as indicated by the following observations:

May 20.979 UT, < 13.0, T. Vanmunster, Landen, Belgium; 21.938, < 13.8, Vanmunster; 
22.983, < 13.0, Vanmunster; 27.933, < 13.0, Vanmunster; 29.053, 14.9, G. Poyner, 
Birmingham, England; 30.038, < 13.8, Vanmunster; Jun 1.930, < 13.0, Vanmunster; 2.972, 
< 13.8, Vanmunster; 6.001, < 13.0, Vanmunster; 7.943, < 13.8, Vanmunster; 8.990, < 13.8, 
Vanmunster (via CVC); 9.010, < 13.0, P. Schmeer, Bischmisheim, Germany (via CVC); 
10.010, < 13.4, Schmeer;18.351,12.1, J. Nordby, Moorhead, MN; 18.993,12.2, Vanmunster; 
19.001, 12.3, G. Poyner, Birmingham, England (via CVC); 19.009, 12.3, E. Broens, Mol, 
Belgium (via CVC); 19.939, 12.6, Vanmunster; 19.996, 12.3, Schmeer; 20.007, 12.3, J. Pietz, 
Erftstadts, Germany; 20.284, 12.3, Nordby; 20.461, 12.5, R. Royer, Lakewood, CA; 21.26, 
12.9, G. Dyck, Assonet, MA.

The most recent outbursts of this cataclysmic variable occurred in September 1994 (see 
AAVSO Alert Notice 193), when DX And reached magnitude 11.6 at maximum, and in 
August 1993, when it reached magnitude 11.0. The outbursts generally last two to three 

Please monitor the current outburst of DX And closely, using the "e" scale AAVSO 
preliminary chart distributed with AAVSO Alert Notice 193, and report your observations 
to AAVSO Headquarters.


We have been informed by Tonny Vanmunster, Landen, Belgium, that the dwarf nova IP 
Peg has gone into outburst. The most recently-observed outbursts of IP Peg occurred in 
December 1994, when the star reached magnitude 12.0 (AAVSO Alert Notice 192), and in 
August 1994, when it reached magnitude 11.8.

Recent observations include:

May 10.074 UT, < 12.6, T. Vanmunster, Landen, Belgium; 21.043, < 12.9, Vanmunster; 
28.024, < 13.8, Vanmunster; 30.056, < 13.8, Vanmunster; Jun 3.019, < 12.9, Vanmunster; 
7.979, < 12.9, Vanmunster; 8.994, < 12.9, Vanmunster; 19.014, 13.0, Vanmunster; 20.007, 
13.9, Vanmunster; 20.029, 13.8, J. Pietz, Erftstadts, Germany; 20.455, 13.8, R. Royer, 
Lakewood, CA.

Please monitor IP Peg closely, using the "e" scale AAVSO preliminary chart distributed 
with AAVSO Alert Notice 192, and report your observations to AAVSO Headquarters. IP 
Peg is a cataclysmic variable that has deep eclipses of two magnitudes or more with a 
period of 3.8 hours and a duration of several tens of minutes. Monitoring the eclipses
during the outburst is valuable and recommended; report the timing of all positive 
observations to the minute (four decimal places).


We have been informed by D. Green, Central Bureau for Astronomical Telegrams 
(CBAT), of the discovery of a new variable star in Crux by astronomers (no names 
available) at the Observatorio Astronomico del Colegio Cristo Rey, Rosario, Argentina. 
The astronomers reported CCD observations of March 21 UT, 11.29; May 30, 9.53; and 
June 2, 9.44.

Green reports a precise position provided by A. Gilmore and P. Kilmartin, Mount John 
University Observatory, New Zealand, for epoch 2000:

		R. A. = 12h 56m 25.64s	Dec. = -60deg 57' 56.6"

G. Williams, CBAT, examined the Digital Sky Survey, but found no corresponding image 
to magnitude 16-17 (assumed V), implying that the object is of relatively large amplitude. 
Kilmartin found an image on the Vehrenberg Atlas Stellamnt, but did not find an image on 
the Papadopoulos Tiue Visual Magnitude Photographic Star Atlas. (Green)

Observations made by Kilmartin and Gilmore (via Green), and W. Liller, Vina del Mar, 
Chile, indicate that the object is very red, and is most likely a long period variable.

Additional observations of Var Cru include:

1992 	Jun	1.02	11.2 PTG orange filter, W. Liller
	Jun	9.20	11.3 PTG orange filter, Liller
1994 	Jan	30.28	11.0 PTG red filter, Liller
	Jul	30.04	<11.5 PTG orange filter, Liller
	Sep	2.04	<11.5 PTG orange filter, Liller
1995 	Mar	22.40	<11:5 PTG orange filter, Liller
	May	21.01	11.5: PTG orange filter, Liller
	May	29.02	11.2 PTG orange filter, Liller
	Jun	3.12	11.3 PTG orange filter, Liller
	Jun	5.98	11.8 CCDV, Liller
	Jun	5.98	10.7 CCDR with IR block, Liller
	Jun	7.39	11.94 V, P. Kilmartin

Please use the accompanying AAVSO 'b" and "d" scale preliminary charts prepared by C. 
Scovil, to observe Var Cru, and report your observations to AAVSO Headquarters.

Congratulations to the astronomers at the Observatorio Astronomico del Colegio Cristo 
Rey on their discovery!


The dwarf nova-type cataclysmic variable BZ UMa has undergone a short outburst, as 
indicated by the following observations:

Jun 1.915 UT, < 13.7, T. Vanmunster, Landen, Belgium; 2.935, < 13.7, Vanmunster; 7.911, 
< 13.7, Vanmunster; 7.957, < 13.7, G. Poyner, Birmingham, England; 8.986, < 13.7,

Vanmunster; 9.89, < 13.3, P. Schmeer, Bischmisheim, Germany; 9.941, < 13.7, Poyner; 
10.906, < 12.6, Schmeer; 11.90, < 12.6, Schmeer; 14.950, 11.5, Poyner; 15.956, 12.7:, B. 
Worraker, Didcot, England (via G. Poyner); 16.924, < 11.7, Schmeer; 18.991, < 13.7, 
Vanmunster; 19.929, < 13.7, Vanmunster; 19.938, < 13.2, Schmeer.

The last recorded outburst of BZ UMa was in October 1994, when it reached magnitude 


0409-71 VW Hydri. As was requested of our southern hemisphere observers in AAVSO 
Alert Notice 208, please monitor VW Hyi closely between June 23 and July 14, and notify 
us IMMEDIATELY when it becomes brighter than magnitude 12.5. Timely notification is 
crucial in order to schedule EUVE observations as part of a coordinated observing run 
with the EUVE, Voyager, and ALEXIS satellites by astronomers at Lawrence Livermore 
National Laboratory.

2138+43 SS Cygni. As was also requested in AAVSO Alert Notice 208, please keep a close 
eye on SS Cyg between now and the end of January 1996, and inform us when you see it 
going into or in outburst, i.e., when it is brighter than 11.3, so we may inform astronomers 
at the IUE station in Vilspa, Spain, who are interested in observing SS Cyg with the IUE 
when it is undergoing an anomalous outburst, i.e., when it is slow in rising to maximum 

The answering machine at AAVSO Headquarters is on nights and weekends for your 
convenience. Please call our charge-free number (800-642-3883) to report your 
observations. We also encourage observers to send observations by fax to 617-354-0665 or 
by e-mail through the Internet to

When telephoning in observations, please state the name of the star, the magnitude, and 
the time of the observation. Please speak clearly. The preferred time is either your local 
time (be sure to state the time zone and whether it is Standard or Daylight Savings Time) 
or Universal Time. You do not need to give the designation of the star. Please also 
include the comparison stars you have used in making the observation.

Many thanks for your efforts and your valuable observations.

Good observing!

Janet A. Mattei 

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