COMMISSIONS AND OF THE I A U INFORMATION BULLETIN ON VARIABLE STARS Nos November July EDITORS L SZABADOS K OLAH TECHNICAL EDITOR A HOLL TYPESETTING K ORI ADMINISTRATION Zs KOVARI EDITORIAL BOARD L A BALONA M BREGER E BUDDING M deGROOT E GUINAN D S HALL P HARMANEC M JERZYKIEWICZ K C LEUNG M RODONO N N SAMUS J SMAK C STERKEN Chair H BUDAPEST XI I Box HUNGARY URL httpwwwkonkolyhuIBVSIBVShtml HU ISSN COPYRIGHT NOTICE IBVS is published on b ehalf of the th and nd Commissions of the IAU by the Konkoly Observatory Budap est Hungary Individual issues could b e downloaded for scientic and educational purp oses free of charge Bibliographic information of the recent issues could b e entered to indexing sys tems No IBVS issues may b e stored in a public retrieval system in any form or by any means electronic or otherwise without the prior written p ermission of the publishers Prior written p ermission of the publishers is required for entering IBVS issues to an electronic indexing or bibliographic system to o CONTENTS C STERKEN A JONES B VOS I ZEGELAAR AM van GENDEREN M de GROOT On the Cyclicity of the S Dor Phases in AG Carinae ::::::::::::::::::::::::::::::::::::::::::::::::::: : J BOROVICKA L SAROUNOVA The Period and Lightcurve of NSV ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::: W LILLER AF JONES A New Very Long Period Variable Star in Norma ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::: EA KARITSKAYA VP GORANSKIJ Unusual Fading of V Cygni Cyg X in Early November ::::::::::::::::::::::::::::::::::::::: KN GRANKIN MM ZAKIROV GC ARZUMANYANTS SYu MELNIKOV New Eclipsing Binary Star CoD in the Direction of the StarForming Region Oph :::::::::::::::::::::::::::::::::::::::: F AGERER GSC a New Eclipsing Binary :::::::::::::::::::: A LASALAGARCIA NSV a New Detached Eclipsing Binary Star in Ophiuchus ::::::::::::::::::::::::::::::::::::::::::::::::::: ::::: G ZAJTSEVA P PETROV I ILYIN R DUEMLER I TUOMINEN RY Tauri at High Brightness :::::::::::::::::::::::::::::::::::::::::::::: J GREINER ML HAZEN HV and the Sup ersoft XRay Source RX J ::::::::::::::::::::::::::::::::::::::::::::::::: E GARCIAMELENDO JM GOMEZFORRELLAD NSV a New Detached Eclipsing Binary Star in Canis Minor :::::::::::::::::::::::::::: PL NEDIALKOV NA TIKHONOV RG KURTEV GR IVANOV New Variables in the NorthEastern Part of M :::::::::::::::::::::::::: RM ROBB MD GLADDERS New Variables in the Field of RE J ::::::::::::::::::::::::::::::::::::::::::::::::::: ::::::::: ZI KADLA AN GERASHCHENKO YuN MALAKHOVA Variable Stars in the Globular Cluster M :::::::::::::::::::::::::::::::::::::::: ZI KADLA AN GERASHCHENKO YuN MALAKHOVA Variable Stars in the Globular Cluster NGC ::::::::::::::::::::::::::::::::::: AS SHAROV On Novae and and Possible Nova in M MA CERRUTI V Cen New Times of Minima and a Possible Short Period Mo dulation :::::::::::::::::::::::::::::::::::::::::::::::::: BA SKIFF A Revision of Dolidzes List of Probable LongPeriod Variables of M Types :::::::::::::::::::::::::::::::::::::::::::::::::: AN GERASHCHENKO ZI KADLA Yu N MALAKHOVA Variable Stars in the Globular Cluster NGC ::::::::::::::::::::::::::::::::::: G CUTISPOTO M KURSTER I PAGANO M RODONO UBVRI c Photometry of the Rapidly Rotating KType Star HD Sp eedy Mic ::::::::::::::::::::::::::::::::::::::::::::::::::: ::::::::: GV WILLIAMS NSV Minor Planet Suleika :::::::::::::: LN BERDNIKOV DG TURNER Photo electric BVI Observations and C a New Classication for V Arae :::::::::::::::::::::::::::::::::::::::: LN BERDNIKOV DG TURNER Photo electric BVI Observations and C a New Classication for the RS CVn Star GR Normae :::::::::::::::::::: JM GOMEZFORRELLAD E GARCIAMELENDO NSV a Detached Eclipsing Binary Star in Orion :::::::::::::::::::::::::::::::::: J VIDALSAINZ JM GOMEZFORRELLAD E GARCIAMELENDO NSV is an Overcontact Binary System in Pisces ::::::::::::::::::::: J JUANSAMSO J GUARROFLO NSV a Possible Semiregular Variable in Hercules ::::::::::::::::::::::::::::::::::::::::::::::::::: ::: F CAMPOSCUCARELLA JM GOMEZFORRELLAD E GARCIAMELENDO A New Beta Lyrae Variable SAO and Two New Possible Irregular Stars BD and SAO :::::::::::::::: JM GOMEZFORRELLAD A GARRIGOSSANCHEZ NSV a New Overcontact Eclipsing Binary System in Triangulum :::::::::::::::: M MIKOLAJEWSKI T TOMOV D KOLEV Activity of T Coronae Borealis in ::::::::::::::::::::::::::::::::::::::::::::::::::: ::::::: Yu A SHOKIN NN SAMUS Accurate Positions for Variables in a Field Around BL Lac :::::::::::::::::::::::::::::::::::::::::::::: K KRISCIUNAS RA CROWE A Search for DoradusType Variables in the Op en Cluster M :::::::::::::::::::::::::::::::::::::::::::::::: BA SKIFF Identication of the MargoniStagni Variables :::::::::::::: T BERTHOLD F AGERER NSV is an Eclipsing Binary :::::::::: BA SKIFF Identication of the RosinoGuzzi Variables in Sagitta :::::: Yu N MALAKHOVA AN GERASHCHENKO ZI KADLA Variable Stars in the Globular Cluster M :::::::::::::::::::::::::::::::::::::::: T PRIBULLA D CHOCHOL P ROVITHIS H ROVITHISLIVANIOU Sudden Period Change in the Contact Binary AW UMa :::::::::::::::::: E GARCIAMELENDO JM GOMEZFORRELLAD A GARRIGOS SANCHES Two Variable Stars in Auriga the New Classical Cepheid NSV and the New Eclipsing Binary System GSC ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::: LN BERDNIKOV DG TURNER Photo electric BVI Observations c New Elements and a New Classication for BZ Tuc :::::::::::::::::::::::: LN BERDNIKOV OV VOZYAKOVA VV IGNATOVA Photo electric BVR Observations for the UU Her Star EV Aurigae :::::::::::::::::::::: c T ROUNTHWAITE G HUDSON R HUDSON E BUDDING Optical Photometry of CF Tuc Mid Through ::::::::::::::::::::::::::: N MASETTI C BARTOLINI A GUARNIERI A PICCIONI A Susp ected Red Variable in the Error Box of GRB ::::::::::::::: BA SKIFF Identication of Variables Near NGC :::::::::::::::::: C LLOYD ND JAMES T BERTHOLD GJ KIRBY MJ COLLINS GSC a New Deeply Eclipsing Binary System in Delphinus :::::: E PAUNZEN HD a New Variable Star :::::::::::::::::::::::::: J WOITAS Detection of New Bright Variables Stars by the Tycho Instrument of the Hipparcos Satellite :::::::::::::::::::::::::::::::::::::: TN DOROKHOVA NI DOROKHOV Observations of Three Bo otis Stars by Using Dual Channel Photometer ::::::::::::::::::::::::::::::::: AN GERASHCHENKO ZI KADLA Yu N MALAKHOVA Variable Stars in the Globular Cluster NGC ::::::::::::::::::::::::::::::::::: AN GERASHCHENKO ZI KADLA Yu N MALAKHOVA Variable Stars in the Globular Cluster NGC ::::::::::::::::::::::::::::::::::: BA SKIFF GV WILLIAMS Identication of Dahlmark Variables I ::: GV WILLIAMS BA SKIFF Identication of Dahlmark Variables II :: BA SKIFF GV WILLIAMS Identication of Dahlmark Variables III GV WILLIAMS BA SKIFF Identication of Dahlmark Variables IV L SAROUNOVA M WOLF CCD Photometry of Eclipsing Binary AL Ophiuchi ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::: J MANFROID P RENSON M BURNET HR a LowAmplitude Cepheid ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::: S ENGIN K YUCE Photo electric Observations of X Persei :::::::::::: LL CHINAROVA Orbital Period of the Eclipsing Variable V Cygni LN BERDNIKOV DG TURNER Photo electric VI Observations and c New Elements for V Carinae HR ::::::::::::::::::::::::::::::: Yu MALAKHOVA AN GERASHCHENKO ZI KADLA Variable Stars in the Globular Cluster NGC :::::::::::::::::::::::::::::::::: L DAHLMARK New Variable Stars in the Northern Milky Way ::::::::: BA SKIFF Identications for Baades variables in Sagitta and Cygnus :: SM RUCINSKI On the Name OverContact Binary Systems ::::::::: RK ZAMANOV VI ZAMANOVA UBV Observations of T CrB ::::::: Corrigenda ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::: SL KIM MY CHUN WB LEE L DOYLE A Flare Event Detected in the Eclipsing Binary CM Dra :::::::::::::::::::::::::::::::::::::::::: HG REIMANN C FRIEDEMANN A New Susp ected Variable in Pisces VP ZALINIAN HM TOVMASSIAN Detection of Fast Flares of EV Lac In ::::::::::::::::::::::::::::::::::::::::::::::::::: ::::: HM TOVMASSIAN E RECILLAS O CARDONA VP ZALINIAN Observations of Flare Stars EV Lac V Mon and YZ CMi :::::::::::::: SL KIM H SUNG SG LEE SAHD A New Eclipsing Binary Among Landolts Standard Stars ::::::::::::::::::::::::: JR PERCY A DESJARDINS M MARINOVA K LUEDEKE MS SMITH RR THOMPSON JE WOOD Sorting Out W Bo otis and its Comparison Stars ::::::::::::::::::::::::::::::::::::::::::::::::: W MOSCHNER E GARCIAMELENDO JM GOMEZFORRELLAD W KLEIKAMP Improved Ephemeris and New Observations of NSV JM GOMEZFORRELLAD E GARCIAMELENDO Photometric Results on Three Hipparcos Variables The New Eclipsing Binary Systems HD and HD and the Star HD ::::::::::::::::::::::: NZ ISMAILOV Photometric Obsrevation of T Tauri Type Stars DI Cep T Tau V Tau GW Ori V Ori ::::::::::::::::::::::::::::: EV KAZAROVETS NN SAMUS The rd NameList of Variable Stars ::::::::::::::::::::::::::::::::::::::::::::::::::: ::::::::::::::::: F AGERER J HUEBSCHER Photo electric Minima of Selected Eclipsing Binaries and Maxima of Pulsating Stars ::::::::::::::::::::::::: is a New Binary Star ::::::::::::::::::::::::: M JANG GSC RM ROBB The Eclipsing Binary Star MS :::::::::::::::: H AK Discovery of an Eclipsing Binary Star in Auriga :::::::::::::::::: J MANEK Improved Positions for Sonneb erg Variables Part ::::::::: BL NELLERMOE LE REITZLER Eclipse Observations of AB Andromedae