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: 0854-24 VZ PYX 1805-14 UZ SER No. 306 0939+52 ER UMA 1848+26 CY LYR June 1, 1998 1552+72 SS UMI 1951+10 V725 AQL ---------------------------------------------------------------------------- 0854-24 VZ PYXIDIS The dwarf nova type (SU UMA subclass) cataclysmic variable VZ PYX is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 29.71 <13.8 MLF MAY 31.714 12.1 MLF MAY 30.739 12.2 MLF JUN 01.7000 11.9 MLF MAY 31.4757 12.1 SRX ---------------------------------------------------------------------------- 0939+52 ER URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable ER UMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 30.925 <14.1 PYG MAY 31.950 12.2 PYG MAY 31.9361 12.6 BMM ---------------------------------------------------------------------------- 1552+72 SS URSAE MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable SS UMI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 29.2028 <15.8 HSG MAY 31.987 <15.4 PYG MAY 29.971 <15.3 PYG JUN 01.3514 15.0: HSG MAY 30.4042 <14.7 HSG ---------------------------------------------------------------------------- 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 MAY 29.4438 <14.8 HSG MAY 31.4854 13.0 SRX MAY 31.3958 12.9 SQN JUN 01.3472 13.1 HSG ---------------------------------------------------------------------------- 1848+26 CY LYRAE The dwarf nova type cataclysmic variable CY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 29.985 <15.1 PYG MAY 31.999 13.9 PYG MAY 30.4444 <14.8 HSG JUN 01.3535 14.0 SQN MAY 31.3576 13.5 SQN JUN 01.3556 13.8 HSG ---------------------------------------------------------------------------- 1951+10 V725 AQUILAE The dwarf nova type cataclysmic variable V725 AQL is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 29.4465 <15.5 HSG JUN 01.030 13.9: PYG MAY 29.990 13.9 PYG JUN 01.3486 14.4 HSG MAY 30.4361 13.3 HSG According to the AAVSO International Database this star was last in outburst in August, 1996. ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BMM - M. BIESMANS, BELGIUM PYG - G. POYNER, ENGLAND HSG - G. HANSON, USA SQN - L. SHAW, USA MLF - L. MONARD, SOUTH AFRICA SRX - R. STUBBINGS, AUSTRALIA 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! ___________________________________________________________________________