THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS 25 Birch Street, Cambridge, MA 02138 USA Tel. 617-354-0484 Fax 617-354-0665 http://www.aavso.org * * * AAVSO NEWS FLASH * * * Subject: 0217+70 AM CAS 0744-23 BV PUP No. 412 0324+58 AF CAM 0854-24 VZ PYX March 23, 1999 0411+50 NS PER 0855+18 SY CNC 0611+15 CZ ORI 1612-54 HP NOR 0640-16 HL CMA 2138+43 SS CYG ---------------------------------------------------------------------------- 0217+70 AM CASSIOPEIAE The dwarf nova type (Z CAM subclass) cataclysmic variable AM CAS is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 16.1236 15.5: HSG MAR 23.02 13.7 DGP MAR 21.0 <14.2 CGF MAR 23.0389 13.9 CGF ---------------------------------------------------------------------------- 0324+58 AF CAMELOPARDALIS The dwarf nova type cataclysmic variable AF CAM may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 18.840 <15.1 PYG MAR 23.0347 14.0: CGF MAR 21.0 <14.6 CGF ---------------------------------------------------------------------------- 0411+50 NS PERSEI The dwarf nova type cataclysmic variable NS PER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 18.835 <14.6 PYG MAR 23.134 14.3 CCDV FRX/SPK MAR 22.096 14.4 CCD FRX/SPK MAR 23.136 14.5 CCD FRX/SPK We recommend that observers use the vsnet chart for this star. ---------------------------------------------------------------------------- 0611+15 CZ ORIONIS The dwarf nova type cataclysmic variable CZ ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 22.1042 <13.9 DKS MAR 23.02 12.0 DGP MAR 22.1064 <13.3 BEB MAR 23.0875 12.4 MKJ MAR 22.4556 13.3 SRX MAR 23.0972 12.7 DKS MAR 22.850 12.3 OJR MAR 23.4535 12.6 SRX ---------------------------------------------------------------------------- 0640-16 HL CANIS MAJORIS The dwarf nova type cataclysmic variable HL CMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 21.0160 13.7 DPL MAR 23.02 11.7 DGP MAR 22.0768 <13.0 BEB MAR 23.0424 11.8 CGF MAR 22.4521 11.8 SRX MAR 23.1014 11.8 DKS MAR 22.857 12.5 OJR MAR 23.4278 11.7 SRX ---------------------------------------------------------------------------- 0744-23 BV PUPPIS The dwarf nova type (SS CYG subclass) cataclysmic variable BV PUP appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 16.4653 <15.0 SRX MAR 23.4312 13.8 SRX MAR 22.4576 14.1 SRX ---------------------------------------------------------------------------- 0854-24 VZ PYXIDIS The dwarf nova type (SU UMA subclass) cataclysmic variable VZ PYX appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 13.5264 15.1 SRX MAR 22.4569 12.8 SRX MAR 13.73 <14.3 MLF MAR 23.4271 12.8 SRX ---------------------------------------------------------------------------- 0855+18 SY CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable SY CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 18.063 13.7 CGF MAR 22.2465 12.1 AAP MAR 18.899 13.3 PYG MAR 23.02 12.5 DGP MAR 18.9646 13.3 POX MAR 23.072 12.3 CGF MAR 19.046 13.2 CGF MAR 23.1292 12.5 MKJ MAR 20.2430 13.1 BEB MAR 23.4882 12.6 SRX MAR 21.154 12.6 CGF ---------------------------------------------------------------------------- 1612-54 HP NORMAE The dwarf nova type (Z CAM subclass) cataclysmic variable HP NOR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 16.4889 <14.0 SRX MAR 23.4792 12.7 SRX MAR 21.806 13.2 PEX ---------------------------------------------------------------------------- 2138+43 SS CYGNI The dwarf nova type (SS CYG subclass prototype) cataclysmic variable SS CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 19.2042 11.7 BMM MAR 22.5021 8.8 COL MAR 19.91 12.1 KTO MAR 23.4285 8.7 KMA MAR 20.399 11.7 MRV ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: AAP - A. ABBOTT, CANADA KTO - T. KINNUNEN, FINLAND BEB - R. BERG, USA MKJ - J. MCKENNA, USA BMM - M. BIESMANS, BELGIUM MLF - L. MONARD, SOUTH AFRICA CGF - G. CHAPLE JR., USA MRV - R. MODIC, USA COL - P. COLLINS, USA OJR - J. OSORIO, SPAIN DGP - G. DYCK, USA PEX - A. PEARCE, AUSTRALIA DKS - S. DVORAK, USA POX - M. POXON, ENGLAND DPL - P. DOMBROWSKI, USA PYG - G. POYNER, ENGLAND FRX - R. FRIED, USA SPK - P. SCHMEER, GERMANY HSG - G. HANSON II, USA SRX - R. STUBBINGS, AUSTRALIA KMA - M. KOMOROUS, CANADA 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, Director Rebecca Pellock, Technical Assistant ____________________________________________________________________________ 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 visiting the following web page: http://www.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 An archive of past issues of the News Flash is available at the following web page: http://www.aavso.org/newsflash/ We look forward to including your observations in future editions of AAVSO NEWS FLASH! ____________________________________________________________________________