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: 0206+57A TZ PER 1344+08 CR BOO No. 312 0217+70 AM CAS 1805-14 UZ SER June 22, 1998 0814+73 Z CAM 1831+38 LL LYR 0854-24 VZ PYX 2048+43 V751 CYG 1011+72 CI UMA ---------------------------------------------------------------------------- 0206+57A TZ PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable TZ PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 12.002 <13.5 PYG JUN 22.059 13.7 PYG JUN 17.040 <13.5 PYG JUN 22.4417 13.3 HSG According to observations in the AAVSO International Database, TZ Per is mid-14th magnitude at minimum. ---------------------------------------------------------------------------- 0217+70 AM CASSIOPEIAE The dwarf nova type (Z CAM subclass) cataclysmic variable AM CAS may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 05.4299 15.3: HSG JUN 22.4396 14.1 HSG JUN 06.4382 15.5: HSG ---------------------------------------------------------------------------- 0814+73 Z CAMELOPARDALIS The dwarf nova type (Z CAM subclass prototype) cataclysmic variable Z CAM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 16.954 13.0 PYG JUN 20.250 11.3 MRV JUN 17.2632 12.9 SQN JUN 20.2813 11.2 SQN JUN 18.2715 12.5 SQN JUN 20.910 11.0 DPA JUN 19.2229 11.3 BTH JUN 20.9750 10.8 BMM JUN 19.2639 12.1 SQN JUN 21.957 11.0 PYG JUN 20.0097 11.7 BMM JUN 22.3764 11.0 HSG JUN 20.2236 11.0 BTH ---------------------------------------------------------------------------- 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 JUN 16.3750 15.0 SRX JUN 20.4424 13.0 SRX JUN 17.4646 <14.4 SRX JUN 22.4250 14.1 SRX JUN 18.417 <14.5 WPX ---------------------------------------------------------------------------- 1011+72 CI URSAE MAJORIS The dwarf nova type cataclysmic variable CI UMA may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 18.2743 <14.1 SQN JUN 21.958 <14.1 PYG JUN 19.2681 <13.5 SQN JUN 22.1104 14.3 BRJ JUN 20.2840 <14.1 SQN According to observations in the AAVSO International Database, CI UMa is fainter than magnitude 16 at minimum. ---------------------------------------------------------------------------- 1344+08 CR BOOTIS The magnetic variable CR BOO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 16.943 <13.8 PYG JUN 21.933 14.4 PYG JUN 21.5232 14.9 HAV According to observations in the AAVSO International Database, CR Boo is fainter than magnitude 16 at minimum. ---------------------------------------------------------------------------- 1805-14 UZ SERPENTIS The dwarf nova type (possible Z CAM subclass) cataclysmic variable UZ SER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 16.4861 <14.2 SRX JUN 22.3847 12.1 HSG JUN 20.4965 <14.2 SRX JUN 22.5007 13.0 SRX ---------------------------------------------------------------------------- 1831+38 LL LYRAE The dwarf nova type cataclysmic variable LL LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 21.990 13.7 PYG JUN 22.4201 14.1 HSG JUN 22.3965 14.3 HSG JUN 22.4444 14.0 HSG According to observations in the AAVSO International Database, LL Lyr is fainter than magnitude 16 at minimum. ---------------------------------------------------------------------------- 2048+43 V751 CYGNI The nova-like variable V751 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 03.3813 15.0 HSG JUN 18.3715 14.6 SQN JUN 04.4194 14.9 HSG JUN 22.013 14.6 PYG JUN 06.4250 14.9 HSG JUN 22.4153 14.9 HSG According to observations in the AAVSO International Database, V751 Cyg is mid-16th magnitude at minimum. ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BMM - M. BIESMANS, BELGIUM MRV - R. MODIC, USA BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND BTH - T. BURROWS, USA SQN - L. SHAW, USA DPA - A. DIEPVENS, BELGIUM SRX - R. STUBBINGS, AUSTRALIA HAV - R. HARVAN, USA WPX - P. WILLIAMS, NEW ZEALAND HSG - G. HANSON II, USA Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Elizabeth O. Waagen, Senior Technical Assistant on behalf of Janet A. Mattei, Director ____________________________________________________________________________ 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! ____________________________________________________________________________