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: 0733-25 N? PUP 00 0725+06 SV CMI No. 718 0058+40 RX AND 0804+28 YZ CNC January 2, 2001 0130+50 KT PER 0814+73 Z CAM 0203+56A UV PER 0854-24 VZ PYX 0401+50 FO PER 0855+18 SY CNC 0640-16 HL CMA 0939+52 ER UMA 0641+28 IR GEM 2335+12 HX PEG ---------------------------------------------------------------------------- 0733-25 N? PUP 00 Below are recently received observations of the new possible nova in Puppis (see New Flash No. 717.) For more information and AAVSO preliminary charts please see AAVSO Alert Notice 279, which is posted on the AAVSO web page at www.aavso.org. AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 30.612 9.2 SRX JAN 01.026 9.0 RMQ DEC 30.662 9.2 SRX JAN 01.0777 9.1 OSE DEC 31.3225 9.1 CCDV PCH JAN 01.504 9.2 SRX DEC 31.569 9.2 SRX JAN 02.0333 9.1: OSE DEC 31.600 9.3 SRX ---------------------------------------------------------------------------- 0058+40 RX ANDROMEDAE The dwarf nova type (Z CAM subclass) cataclysmic variable RX AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 30.868 <13.8 PYG JAN 01.672 11.7 RMQ DEC 30.885 14.2 MGH JAN 01.9562 10.9 DPL DEC 31.2570 13.5 BTH JAN 01.9597 11.5 MDP JAN 01.006 13.4: RMQ JAN 02.02 11.0 HP JAN 01.2570 10.6 BTH JAN 02.1563 10.9 SXN ---------------------------------------------------------------------------- 0130+50 KT PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable KT PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 28.2021 <14.3 SXN JAN 30.876 12.2 PYG DEC 28.8342 13.44 CCD DRG DEC 30.895 12.8 MGH DEC 28.845 13.4 MUY DEC 31.1514 12.0 AAP DEC 28.861 13.1 OJR DEC 31.999 12.5 RMQ DEC 29.0069 12.2 CGF JAN 01.9645 12.0 DPL DEC 30.1521 11.8 AAP JAN 02.0591 12.0 BEB DEC 30.755 12.5 OJR JAN 02.1583 12.0 SXN DEC 30.76 12.6 VET JAN 02.1687 12.7 VPJ DEC 30.813 12.5 MUY ---------------------------------------------------------------------------- 0203+56A UV PERSEI The dwarf nova type (SU UMA subclass) cataclysmic variable UV PER continues in outburst (see AAVSO News Flash 716), as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 25.740 11.9 MUY DEC 28.856 12.0 OJR DEC 26.9792 11.7 CGF DEC 29.0076 11.7 CGF DEC 27.0882 12.0 BRJ DEC 29.1208 11.7 SRB DEC 27.2639 11.6 SRB DEC 29.1875 11.8 SRB DEC 27.2708 11.6 SRB DEC 29.2417 11.9 SRB DEC 27.2743 11.5 SRB DEC 29.2951 11.9 SRB DEC 27.2785 11.5 SRB DEC 29.7903 13.0 JCN DEC 27.2819 11.5 SRB DEC 29.824 12.5 RMQ DEC 27.2875 11.5 SRB DEC 30.73 12.5 VET DEC 27.2903 11.5 SRB JAN 30.748 12.3 PYG DEC 27.2938 11.6 SRB DEC 30.754 12.5 OJR DEC 27.2979 11.6 SRB DEC 30.7729 12.7 JCN DEC 27.3021 11.5 SRB DEC 30.815 12.4 MUY DEC 27.895 11.0 OJR DEC 30.815 12.4 MUY DEC 27.9715 11.7 CGF DEC 30.93 12.7 GGX DEC 28.09 11.9 DGP DEC 30.976 13.5 MGH DEC 28.2201 11.9 SXN DEC 31.2736 12.7 BTH DEC 28.3020 12.7 RR JAN 01.0000 12.6 RMQ DEC 28.3021 12.7 RR JAN 01.2694 12.8 BTH DEC 28.729 11.9 PYG JAN 01.673 12.6 RMQ DEC 28.8360 12.28 CCD DRG JAN 02.1722 12.8 VPJ DEC 28.848 12.3 MUY JAN 02.2007 12.6 SXN In addition to the above observations, AAVSO observer Ronald Zissell(USA) has reported 105 observations from an excellent observing run from the night of Dec 28/29, which show the superhumps very clearly. These data can be viewed via the AAVSO web page (www.aavso.org) in the "Quick Look" file. We are currently preparing the data for publication. ---------------------------------------------------------------------------- 0401+50 FO PERSEI The dwarf nova type cataclysmic variable FO PER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 01.002 <15.2 RMQ JAN 02.2160 13.1 SXN ---------------------------------------------------------------------------- 0640-16 HL CANIS MAJORIS The dwarf nova type (Z CAM subclass) cataclysmic variable HL CMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 30.510 <13.0 SRX JAN 01.533 11.6 SRX DEC 31.578 <11.8 SRX JAN 01.765 11.9 PEX JAN 01.501 11.6 SRX JAN 02.2354 11.6 SXN ---------------------------------------------------------------------------- 0641+28 IR GEMINORUM The dwarf nova type (SU UMA subclass) cataclysmic variable IR GEM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 23.0799 15.79 CCD DRG DEC 30.542 11.8 SRX DEC 23.578 <13.4 SRX DEC 30.77 11.0 VET DEC 27.523 <13.6 SRX DEC 30.822 11.9 OJR DEC 27.947 <14.7 OJR DEC 30.853 11.6 MUY DEC 28.201 12.5 MUY JAN 30.892 11.3 PYG DEC 28.2799 12.0 SXN DEC 31.006 11.2 MGH DEC 28.492 12.0 SRX JAN 01.031 11.6 RMQ DEC 28.512 12.0 SRX JAN 01.530 11.9 SRX DEC 28.878 11.8 OJR JAN 02.1200 11.8: BEB DEC 28.885 11.5 MUY JAN 02.2771 12.3 SXN DEC 29.495 11.8 SRX ---------------------------------------------------------------------------- 0725+06 SV CANIS MINORIS The dwarf nova type (Z CAM subclass) cataclysmic variable SV CMI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 28.515 <14.6 SRX JAN 01.014 13.3 RMQ DEC 28.891 <13.8 MUY JAN 01.528 13.6 SRX DEC 30.545 13.8 SRX JAN 01.780 13.4 PEX DEC 30.560 13.7 SRX JAN 02.2868 13.3 SXN DEC 31.582 13.4 SRX ---------------------------------------------------------------------------- 0804+28 YZ CANCRI The dwarf nova type (SU UMA subclass) cataclysmic variable YZ CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 23.0906 15.20 CCD DRG DEC 28.3333 10.8 SXN DEC 23.579 <13.3 SRX DEC 28.872 11.1 OJR DEC 23.786 14.4 PEX DEC 28.889 11.3 MUY DEC 24.789 11.8 PEX DEC 30.543 11.4 SRX DEC 26.10 12.1 DGP DEC 30.77 11.4 VET DEC 26.706 11.6 SRX DEC 30.856 11.3 MUY DEC 27.95 10.7 GUN JAN 01.032 11.4 RMQ DEC 27.951 11.3 OJR JAN 01.709 11.3 SRX DEC 28.205 11.3 MUY JAN 01.797 11.4 PEX DEC 28.205 11.3 MUY JAN 02.3056 11.5 SXN ---------------------------------------------------------------------------- 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 DEC 21.0000 13.4 CGF DEC 27.959 10.8 OJR DEC 21.7790 <13.1 HHU DEC 27.9792 10.6 CGF DEC 23.0021 13.2 DPV DEC 28.1541 10.4 LMK DEC 23.5000 13.2 CGF DEC 28.227 10.6 MUY DEC 23.987 13.5 RMQ DEC 28.227 10.6 MUY DEC 26.2395 12.9 LMK DEC 28.4382 10.5 CGF DEC 26.4597 12.4 CGF DEC 28.7306 11.1 VFK DEC 26.76 12.2 GUN DEC 28.857 10.9 OJR DEC 26.9688 11.6 CGF DEC 28.879 11.0 MUY DEC 27.1014 11.0 BRJ DEC 29.0868 10.5 CGF DEC 27.1049 11.6 CGF DEC 29.4479 10.5 CGF DEC 27.2291 10.7 LMK DEC 30.775 10.8 OJR DEC 27.4396 10.8 CGF DEC 30.840 10.9 MUY DEC 27.8 10.5 GUN JAN 30.896 10.7 PYG DEC 27.8100 10.5 SJZ DEC 31.245 10.9 MUY ---------------------------------------------------------------------------- 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 DEC 30.510 15.1 SRX JAN 01.706 13.0 SRX DEC 30.87 <14.3 MLF JAN 01.792 12.9 PEX DEC 31.566 <13.4 SRX JAN 01.795 13.2 MLF JAN 01.494 13.8 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 DEC 24.783 13.8 PEX JAN 01.042 12.3 RMQ DEC 26.708 13.4 SRX JAN 01.541 12.0 SRX DEC 28.207 13.4 MUY JAN 01.704 12.0 SRX DEC 28.3215 13.5 SXN JAN 01.798 12.5 PEX DEC 30.567 12.9 SRX JAN 02.2958 11.5 SXN ---------------------------------------------------------------------------- 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 DEC 09.992 14.0: RMQ DEC 28.229 12.8 MUY DEC 21.868 12.4 BMU DEC 28.881 12.9 MUY DEC 21.926 12.2 RMQ JAN 30.900 13.3: PYG DEC 23.978 12.5 RMQ DEC 31.247 12.9 MUY DEC 27.965 12.8 OJR ---------------------------------------------------------------------------- 2335+12 HX PEGASI The dwarf nova type cataclysmic variable HX PEG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 22.8148 14.43 CCD DRG DEC 27.9632 12.7 CGF DEC 23.0688 13.5 SXN DEC 28.8044 13.31 CCD DRG DEC 23.773 13.0 RMQ DEC 28.9972 12.4 CGF DEC 23.9667 12.8 CGF DEC 30.733 13.3 MUY DEC 26.9639 12.8 CGF JAN 02.1187 <13.0 SXN DEC 27.0688 13.0 BRJ ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: AAP - A. ABBOTT, CANADA MGH - H. MCGEE, ENGLAND BEB - R. BERG, USA MLF - L. MONARD, SOUTH AFRICA BMU - R. BOUMA, NETHERLANDS MUY - E. MUYLLAERT, BELGIUM BRJ - J. BORTLE, USA OJR - J. OSORIO, SPAIN BTH - T. BURROWS, USA OSE - S. OTERO, ARGENTINA CGF - G. CHAPLE JR., USA PCH - C. PULLEN, USA DGP - G. DYCK, USA PEX - A. PEARCE, AUSTRALIA DPL - P. DOMBROWSKI, USA PYG - G. POYNER, ENGLAND DPV - P. DUBOVSKY, SLOVAKIA RMQ - M. RESZELSKI, POLAND DRG - R. DIETHELM, SWITZERLAND RR - R. ROYER, USA GGX - G. GUZMAN, FRANCE SJZ - J. SPEIL, POLAND GUN - J. GUNTHER, FRANCE SRB - R. STINE, USA HHU - H. HAUTECLER, BELGIUM SRX - R. STUBBINGS, AUSTRALIA HP - W. HAMPTON, USA SXN - M. SIMONSEN, USA JCN - C. JONES, ENGLAND VET - M. VERDENET, FRANCE LMK - M. LINNOLT, USA VFK - F. VOHLA, GERMANY MDP - P. MCDONALD, CANADA VPJ - J. VAN POUCKER, 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, 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! ____________________________________________________________________________