[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-alert 454] AAVSO News Flash - No. 34




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

                        * * *  AAVSO NEWS FLASH  * * *

Subject: SS Cyg, AB Dra, AH Her                     No. 34
         EM Cyg, FG Sge                             July 2, 1996
________________________________________________________________________________
SS CYGNI

The dwarf nova (SS Cyg subclass prototype) cataclysmic variable SS Cyg is 
now fading from its current outburst (see News Flash No. 33) as indicated 
by the following observations:

                     AAVSO Observer                           AAVSO Observer  
    UT        Mag.     Initials              UT        Mag.     Initials      

JUN 27.9      8.6        ZAG             JUN 30.2667   9.1        DIL  
JUN 28.1229   8.8        KMA             JUN 30.2715   8.8        BTH 
JUN 28.1986   8.4        HSG             JUN 30.2826   8.6        SQN 
JUN 28.2389   8.8        DIL             JUN 30.3056   8.8        HSG 
JUN 28.2396   8.7        RR              JUN 30.95     8.9        GUN 
JUN 28.2833   8.4        COL             JUL  1.1035   8.9        SET 
JUN 28.8750   9.1        OJR             JUL  1.2667   9.5        RR  
JUN 29.0      8.4        KIL             JUL  1.2750   9.1        BTH 
JUN 29.1132   9.1:       SHS             JUL  1.3146   9.4        KMA 
JUN 29.2507   8.7        DIL             JUL  1.9674   9.4        BMM 
JUN 29.2597   8.6        KSP             JUL  2.1028   9.4        RTY 
JUN 29.2750   8.5        BTH             JUL  2.1521   9.4        RTY 
JUN 29.9      8.3        KIL             JUL  2.181    9.8        BEB 
JUN 29.9      8.4        KIL             JUL  2.2167   9.8        RR  
JUN 30.1882   8.8        MDP             JUL  2.2778   9.5        BTH 
JUN 30.2431   8.8        CKB             

We thank you for your daily observations which enabled us to confirm our 
prediction that this outburst would be narrow. 
-----------------------------------------------------------------------------
AB DRACONIS

The dwarf nova type (Z Cam subclass) cataclysmic variable AB Dra appears to 
be in outburst as indicated by the following observations:

                     AAVSO Observer        
    UT        Mag.     Initials            

JUL 1.9750    13.5       BMM       
JUL 2.2570    12.8       BTH       
-----------------------------------------------------------------------------
AH HERCULIS

The dwarf nova type (Z Cam subclass) cataclysmic variable AH Her is in 
outburst as indicated by the following observations:

                     AAVSO Observer                           AAVSO Observer  
    UT        Mag.     Initials              UT        Mag.     Initials      

JUN 27.342    14.47CCDV  ZRE             JUL 1.1701    11.6       HSG
JUN 30.2306   13.2       BTH             JUL 1.2264    11.6       BTH
JUN 30.3000   13.1       DIL             JUL 2.124     11.76CCDV  ZRE
JUN 30.3118   12.9:      HSG             JUL 2.2319    11.3       BTH
-----------------------------------------------------------------------------  
EM CYGNI

The dwarf nova type (Z Cam subclass) cataclysmic variable EM Cyg is in 
outburst as indicated by the following observations:

                     AAVSO Observer           
    UT        Mag.     Initials               

JUN 27.1979   13.8       DIL  
JUN 28.2424   13.6:      DIL  
JUN 30.2736   12.5       DIL  
JUL  1.9715   12.6       BMM  
-----------------------------------------------------------------------------
FG SAGITTAE

FG Sge, the central star of a planetary nebula, continues to brighten (see 
News Flash No. 33) as indicated by the following observations:

                     AAVSO Observer    
    UT        Mag.     Initials        

JUN 27.182    14.46CCDV  ZRE
JUL  1.2979   14.3 CCDV  RR 
JUL  2.151    13.42CCDV  ZRE
-----------------------------------------------------------------------------
We thank the following contributors for the data that they have provided 
for this News Flash:

BEB - R. Berg, USA                  KSP - S. Knight, USA          
BMM - M. Biesmans, Belgium          MDP - P. McDonald, Canada       
BTH - T. Burrows, USA               OJR - J. R. Osorio, Spain       
CKB - B. Cudnik, USA                RR  - R. Royer, USA             
COL - P. Collins, USA               RTY - T. Rogers, USA            
DIL - W. Dillon, USA                SET - C. Stephan, USA           
GUN - J. Gunther, France            SHS - S. Sharpe, Canada         
HSG - G. Hanson, USA                SQN - L. Shaw, USA              
KIL - L. Kiss, Hungary              ZAG - G. Zajacz, Hungary        
KMA - M. A. Komorous, Canada        ZRE - R. Zissell, USA           

Please monitor these and other variable stars closely and phone-in, fax, 
or e-mail your observations to the AAVSO.

Good observing!
Janet A. Mattei
________________________________________________________________________________
Symbols may include:  < = fainter than magnitude given (variable not seen)
                      : = uncertain
                   CCDV = Charge-coupled device with (V) filter

If you would like to contribute to AAVSO NEWS FLASH, please send
observations of unusual variable star activity to:

                     observations@aavso.org

Those who wish to subscribe (free of charge) or unsubscribe to NEWS FLASH 
may do so by sending a message to:

                     observations@aavso.org

If you would like data from the AAVSO International Database for
research purposes, please send your request to:

        Janet Mattei, AAVSO Director, at aavso@aavso.org

We look forward to including your observations in future editions
of AAVSO NEWS FLASH!
________________________________________________________________________________

VSNET Home Page

Return to Daisaku Nogami


vsnet-adm@kusastro.kyoto-u.ac.jp