PAGE i P U V U L P E C U L A E L I G H T C U R V E S 1 9 7 9 - 1 9 9 5 AAVSO MONOGRAPH 11 This monograph is dedicated to Michael T. Nichols in recognition of his support of and contributions to the Association. Prepared by Janet A. Mattei Elizabeth O. Waagen E. Grant Foster Funds for preparation and publication provided by Michael T. Nichols Clinton B. Ford Additional funds provided by AAVSO Members International Astronomical Union (IAU) ------------------------------------------------------------------------- PAGE ii ISBN 1-878174-22-3 COPYRIGHT 1997 by the American Association of Variable Star Observers 25 Birch Street Cambridge, Massachusetts 02138 USA All rights reserved. All commercial use of any part of this book requires the written permission of the AAVSO. All non-commercial use by individuals and educators is granted without restriction. ------------------------------------------------------------------------- PAGE iii TABLE OF CONTENTS Introduction v Observers of PU Vulpeculae vii Information on PU Vulpeculae ix Key to Symbols ix Long-term Light Curve of PU Vulpeculae, 1979 - 1995 1 Expanded Light Curves of PU Vulpeculae, 1979 - 1995 2 -------------------------------------------------------------------------- PAGE iv is blank -------------------------------------------------------------------------- PAGE v PU VULPECULAE LIGHT CURVES, 1979 - 1995 Introduction AAVSO long-term light curves of variable stars contain crucial information that has a significant bearing on many outstanding questions in astrophysics. These light curves define the behavior of variable stars and provide basic sets of observations for multiwavelength data correlation, data analysis, and for checking theories and matching models. The monograph format enables us to present long-term variable star behavior, with each Monograph containing 20 or more years of computer-generated light curves on one star. Each Supplement to a Monograph continues the light curves of the same star, bringing them more up-to-date. PU Vulpeculae Light Curves, 1979 - 1995 AAVSO Monograph 11 contains light curves of the symbiotic nova type cataclysmic variable PU Vulpeculae (Nova Vulpeculae 1979) from April 1979 through December 1995 (JD 2443973 - 2450083). The AAVSO long-term light curve of PU Vulpeculae from April 1979 through December 1995 (JD 2443973 - 2450083) is presented on page 1. This light curve has been included to give a more complete picture of PU Vulpeculae's behavior. The observations that comprise this light curve are visual and come from the AAVSO International Database. Pages 2 through 14 contain computer-generated light curves from 1979 through December 1995, with each dot representing one observation. Observations are plotted Julian date versus magnitude, and the start of each year (January 1) is indicated along the upper axis. A scaled grid is provided to assist in determining the exact date and magnitude of any data point. Factual information on PU Vulpeculae and a Key to Symbols are given on page ix. The observations in this monograph are the contributions of AAVSO members or observers in the United States and abroad. 253 observers have contributed 13,590 observations to the light curves from 1979 through 1995. The names and observer codes of these observers are given on pages vii through viii. Organizations whose members have contributed observations to the AAVSO either individually or through their organization are listed on page viii. In preparing the data for publication in this monograph, each of the observations was evaluated by my senior technical assistant Elizabeth O. Waagen and by me. Software used in evaluating and plotting the observations was developed by my technical assistant E. Grant Foster. The observations from 1979 through 1995 included in this monograph have been preserved on compact disc, cartridge, and printout. Electronic, diskette, or printout copies of observations for further analysis may be obtained by writing or sending email to the AAVSO Director at aavso@aavso.org. The data may also be retrieved for personal use (not for publication or distribution) from the AAVSO's ftp site: ftp.aavso.org (198.116.78.2) in /pub/monographs, or its home page: http://www.aavso.org. Acknowledgements We dedicate AAVSO Monograph 11 to Michael T. Nichols. Michael has contributed generously towards the preparation of the AAVSO monographs and supplements. We extend our sincere thanks to him. ---------------------------------------------------------------------------- PAGE vi We remember with special thanks Clinton B. Ford for his very generous contribution for the preparation of this and subsequent monographs and monograph supplements. Our sincere thanks go to AAVSO members and friends for their contributions to prepare these monographs and monograph supplements. We thank the International Astronomical Union (IAU) for their support of our monograph series and for the grant provided to the AAVSO to publish this and other monographs. We acknowledge with thanks the computer support of the Smithsonian Astrophysical Observatory for the processing of part of the data and data preservation. The evaluation of the data and the preparation of this monograph were accomplished using the computer facilities at AAVSO Headquarters. This computer hardware was purchased through grants from the National Aeronautics and Space Administration (grant awards NAGW 1493 and NAG 5-1459), the Kenilworth Fund, and the Theodore H. Dunham Fund for Astrophysical Research. We gratefully acknowledge these grants. Many AAVSO assistants helped in the preparation of the data for publication. My special thanks go to Elizabeth O. Waagen for her careful evaluation of the observations and plotting the light curves, and to E. Grant Foster for developing the computer programs for the IBM-PC compatible MS-DOS computers at AAVSO Headquarters to evaluate, plot, and prepare the data for publication. Robert S. Hill, Charles M. Jones, and Richard J. Strazdas assisted in the initial development of the computer programs to manage the large volumes of data. Barbara Silva, Donna Eldridge, Douglas Van Orsow, Young Lim, Michael Bickford, and several other student-assistants have helped in making the data computer-readable. The dedication, the many, many hours of observing, and the untiring efforts of our observers in pursuit of contributing to variable star astronomy have made this publication possible. Our very sincere thanks and gratitude go to them for their valuable astronomical contributions. Janet Akyuz Mattei Director Cambridge, Massachusetts September 1997 --------------------------------------------------------------------- PAGE vii CONTRIBUTORS TO AAVSO DATA ON PU VULPECULAE 1979 - 1995 AMT ADAMS, MARK T. 6 | GJN GENSLER, JAN 33 | AB ALBRECHT, WILLIAM 12 | GCP GERBER, CHRISTOPH 2 | AOD ANDERSEN, ODD'IVAR 12 | GMG GIAMPAOLO, GAMBATO 44 | ANN ANNAL, ROBERT J. 7 | GLF GLENN, FLORENCE R. 9 | ARI ARIAIL, ROBERT B. 1 | GGT GLENN, GARY 1 | ARN ARNOLD, LUC 31 | GLW GLENN, WILLIAM H. 10 | ADE AUCOIN JR., DONALD 1 | GOT GOMEZ, TOMAS 13 | BOZ BAGO, BALAZS 6 | GOP GOODWIN, PAUL N. 35 | BTR BAKER, TIM R. 49 | GRL GRANSLO, BJOERN H. 480 | BSF BARNHART, STEPHEN 1 | GRI GRIESE III, JOHN W. 16 | BSR BARONI, SANDRO 280 | GSC GROS, CHRISTIAN 15 | ABA BARTOLINI, ANTONELLA 2 | GRZ GRZELCZYK, HEINZ 348 | BKK BECKMANN, KENNETH 130 | GUG GUGUMUS, VINCENT 3 | BJS BEDIENT, JAMES R. 2 | GUN GUNTHER, JEAN 126 | BTY BENNER, TERRY 63 | HCS HADHAZI, CSABA 1 | BBE BERENTE, BELA 1 | HK HALBACH, EDWARD A. 59 | BIC BICHON, LAURENT 57 | HAQ HAMVAI, ANTAL 7 | HUO BLOOM, DONNA J. 5 | HBL HASSFORTHER, BELA 23 | BAX BOATTINI, ANDREA 136 | HSB HASUBICK, WERNER 207 | BOH BOHME, DIETMAR 21 | HZL HAZEL, LAWRENCE 6 | BOI BOIS, BERNARD 28 | HEV HEVESI, ZOLTAN 1 | BYR BONDONO, JEFFERY R. 28 | HE HIETT, F. LANCASTER 298 | BRJ BORTLE, JOHN E. 369 | HRI HILL, RICHARD E. 3 | BMU BOUMA, REINDER J. 232 | HIR HIRASAWA, YASUO 46 | BDT BRANCHETT, DAVID W. 196 | HZJ HOLTZ, JOHN WILLIAM 22 | BTB BRETL, THOMAS C. 7 | HOH HONDA, HIDEO 8 | BLP BRLAS, PAL 3 | HR HURLESS, CAROLYN J. 14 | BOA BRUNO, ALAIN 12 | HUR HURST, GUY M. 151 | BUO BUENO, ANTONIO T. 7 | IML IDEM, MICHAEL 5 | BCN BURRELL, C. M. 5 | ILS ISLES, JOHN E. 9 | BJU BUSS, JOHN C. 23 | ITO ITO, MASAYUKI 64 | CBA CABRERA RODRIGUEZ, ANGEL 3 | JAG JAEGER, GREGG 1 | CWA CAMPNEY, WALTER 7 | JJT JEFFREY, J. THOMAS 12 | CPA CAMPONOVO, AMBROSIO 8 | JLT JENSEN, LASSE TEIST 56 | CFN CAMPOS, FRANCISCO 8 | KLY KELLEY JR., GEORGE 19 | CEA CANDELA, BERNARD 1 | KRB KING, ROBERT P. 2 | CIT CAVAGNA, MARCO 173 | KIR KIRBY, PHILLIP E. 17 | CGF CHAPLE JR., GLENN 124 | KIL KISS, LASZLO 6 | CRU CHARRIAUD, X. 7 | KOC KOCSIS, ANTAL 82 | TCE CIFUENTES-TORRES, EDUARDO 91 | KOS KOSA-KISS, ATTILA 104 | CLG CLUYSE, LUDWIG 8 | KOA KOSHIRO, MASAMI 10 | COL COLLINS, PETER L. 107 | KVI KOVACS, ISTVAN 46 | CSD COSTANZO, DANIEL 2 | KWO KRIEBEL, WOLFGANG 57 | CR CRAGG, THOMAS A. 1 | KIS KRISCH, GUNTHER 1 | CZT CSISZAR, TIBOR 1 | KRK KRISCIUNAS, KEVIN 2 | CSI CSOTI, ISTVAN 1 | KJI KRTICKA, JIRI 5 | CSM CSUKAS, MATYAS 4 | KRU KRUTA, JAROSLAV 34 | CCO CUBILLO RUBIATO, CARLOS 17 | KTZ KRZYT, TOMASZ 4 | DAH DAHLE, HAAKON 5 | KPG KUIPERS, GAUKE 44 | DAN DANKO, JANOS 1 | LTW LANGHANS, THOMAS W. 40 | DAJ DAVIS, JACK F. 1 | LKG LARSON, KEVIN G. 1 | DEY DE YOUNG, JAMES A. 51 | LDR LAURENT, DIRK 2 | DES DECEUNINCK, STEFAAN 22 | LVA LAUVSTAD, ANDREAS 4 | DMN DIERICK, DOMINIQUE 30 | LZT LAZUKA, THOMAS 28 | GDB DOMENY, GABOR 5 | LEB LEBERT, ROLAND 29 | DUS DUBOIS, ROBERT 7 | LPI LEISY, PIERRE 2 | DRY DUCOTY, RICHARD B. 3 | LVY LEVY, DAVID H. 6 | DUR DURUY, MAURICE V. 59 | LNB LINDBLOOM, GEORGE 3 | ECJ ECKENDORF, JAMES H. 1 | LOL LORSIGNOL, JEAN 6 | FJH FEIJTH, HENDRIK 71 | LOS LORSIGNOL, SERGE 1 | FKJ FEKETE, JANOS 1 | LVT LOVETT, JAMES 1 | FET FETTERMAN, THOMAS 39 | LX LOWDER, WAYNE M. 72 | FRF FIDRICH, ROBERT 73 | LCG LUDWIG, CLUYSE 1 | FEM FLYNN, EDWARD M. 55 | MDD MADDEN, PATRICK J. 25 | FFC FOLDESI, FERENC 3 | MLT MALLAMA, ANTHONY 3 | FMR FONOVICH, MARINO 2 | MJZ MANZORRO, JUAN 15 | FD FORD, CLINTON B. 1 | MIC MARILLER, C. 24 | FT FORTIER, GEORGE L. 1 | MTH MATSUYAMA, HIROSHI 79 | GBZ GABZO, OFER 150 | MEB MATTEO, ERBA 7 | GAZ GARSZTKA, J. 7 | MPR MAURER, PETER 5 | MYW MAYER JR., ERNST W. 1 | MYR MAYER, ERNST H. 306 | MBC MCMILLAN, BETTY P. 12 | MED MEDWAY, KENNETH J. 708 | MDG MEGGINSON, DAVID L. 3 | MEZ MEZOSI, CSABA 21 | MIS MINOIS, JOEL 84 | MZS MIZSER, ATTILA 232 | MCE MOCHIZUKI, ETSUIKU 38 | MMI MOELLER, MICHAEL 163 | MAR MONELLA, RINALDO 2 | MJ MONTAGUE, ALLEN C. 81 | MAO MORBIDELLI, ALEXANDER J. 8 | MJA MORGAN, JAMES A. 1 | MOJ MORGAN, JAMES E. 9 | MOI MORILLON, ERIC 2 | MRR MORRIS, CHARLES S. 5 | MOW MORRISON, WARREN C. 427 | NBY NORDBY, JOHN M. 3 | OCN O'CONNOR, STEPHEN 14 | OER OFEK, ERAN 14 | OGJ ORTEGA, JUAN CARLOS 17 | OJR OSORIO, JOSE RIPERO 446 | OSA OSTERMANN, ALEXANDER 1 | OSV OSVALD, LASZLO 3 | PPS PAPP, SANDOR 79 | PEG PEGUET, CLAUDE 26 | PMR PERALA, MARTTI R. 172 | PAE PEREIRA, ALFREDO J. 20 | PZA PEREZ-REVILLA, ALAIN 243 | PIA PIEMONTE, ANTONELLA 1 | PTZ PIETZ, JOCHEN 96 | PTP POITEVIN, PATRICK 1 | POX POXON, MICHAEL 2 | PYG POYNER, GARY 109 | PRI PRICE, LELAND 11 | PUJ PUJOL, FRANCISCO 2 | RRB RAPHAEL, ROBERT B. 5 | REP REINHARD, PETER 2 | RJI RIGGS, JOHN I. 17 | RPR ROBBINS, PHILLIP 13 | RLU ROSSI, LUIGI 43 | RGL ROTEM, GILAD 1 | RJV RUIZ, JAVIER 1 | SJQ SAJTZ, ANDRAS 3 | SPQ SAPI, CSABA 8 | SKI SARNECZKY, KRISTIAN 1 | SVT SAVILLE, THOMAS G. 43 | SPK SCHMEER, PATRICK 9 | SCZ SCHWEITZER, EMILE 239 | SCE SCOVIL, CHARLES E. 9 | SEK SEARS, KAY G. 21 | SHS SHARPE, STEVEN B. 272 | SHQ SHEMMER, OHAD 1 | SKL SIMMONS, KARL 1 | SKW SIMMONS, WANDA 1 | SKP SKALAK, PETR 11 | SJZ SPEIL, JERZY 172 | SC SPRATT, CHRISTOPHER 28 | STI STEFFEY, PHILIP C. 81 | SET STEPHAN, CHRISTOPHER 11 | SWT STEWART, ROBERT J. 18 | SUS SUSSMANN, DIETER 1 | SBT SZABO, ROBERT 36 | SOZ SZANTHO, LAJOS 3 | SKV SZARKA, LEVENTE 23 | SMZ SZASZ, MARIO 2 | SNO SZENTASKO, LASZLO 116 | SZC SZENTMARTONI, BELA 1 | SOO SZOLLOSI, ATTILA 3 | ----------------------------------------------------------------------------- PAGE viii CONTRIBUTORS TO AAVSO DATA ON PU VULPECULAE (continued) 1979 - 1995 SUZ SZUTOR, PETER 8 | VMT VANMUNSTER, TONNY 8 | TDB TAYLOR, DANIEL 2 | VED VEDRENNE, PAUL 1046 | THU THOUET, BERNARD 16 | VET VERDENET, MICHEL 1009 | TTK TOTH, KRISZTIAN 1 | VIA VIALLE, JACQUES 65 | TTH TOTH, TAMAS 1 | VGP VIGNIER, PHILLIPE 127 | VAI VAIDIS, JEAN-PIERRE 32 | VIM VIMLATI, LASZLO 1 | VCP VAN CAUTEREN, PAUL 10 | VJS VOJTECH, SIMON 28 | VER VAN DER ENDE, BARRY 3 | VOL VOLLMANN, WOLFGANG 53 | VDE VAN DIJK, E. 5 | VYP VUYLSTEKE, PIETER 19 | VNL VAN LOO, FRANS R. 42 | WMJ WARMERDAM, J. 1 | VWS VAN WASSENHOVE, JEROEN 2 | WEI WEIER, DAVID D. 40 | VDJ VANDIJK, J. F. H. 15 | WEM WESOLOWSKI, MIKE 20 | WI WILLIAMS, DAVID B. 5 | WLP WILS, PATRICK 110 | WDN WILSON, DANNY RAY 1 | WSN WILSON, THOMAS W. 44 | WNB WINGATE, BRUCE I. 11 | WCL WOMACK, CAROLYN L. 4 | WUN WUNDER, EDGAR 2 | YRK YORK, DAVID O. 4 | ZAG ZAJACZ, GYORGY 45 | ZLT ZALEZSAK, TAMAS 15 | ZAM ZANOTTA, MAURO 6 | ZPA ZELLER, PAUL A. 1 | CONTRIBUTING ASTRONOMICAL ORGANIZATIONS Agrupacia Astronomica Albireo of Seville (Spain) Asociacion Argentina Amigos de la Astronomia Association Francaise des Observateurs d'Etoiles Variables (France) Astronomical Society of Southern Africa, Variable Star Section Astronomischer Jugendclub (Austria) Astronomisk Selskab (Scandinavia) British Astronomical Association, Variable Star Section (England) British Astronomical Association of New South Wales (Australia) Bundesdeutsche Arbeitsgemeinschaft fur Veranderliche Sterne e.V.(BAV) (Germany) Grupo Astronomico Silos (Zaragoza, Spain) Grupo Canario de Estrellas Variables (Canary Islands, Spain) Israeli Astronomical Association, Variable Star Section Madrid Astronomical Association M1 (Spain) Liga Ibero-Americana de Astronomia (South America) Magyar Csillagaszati Egyesulet, Valtozocsillag Szakcsoport (Hungary) Nederlandse Vereniging Voor Weer-en Sterrenkunde, Werkgroep Veranderlijke Sterren (Netherlands) Norsk Astronomisk Selskap, Variable Stjernegruppen (Norway) Planetario e Observatorio Astronomico do Colegio Estadual do Parana (Brazil) Red de Observatores de Estrellas Variables - MIRA (Spain) Royal Astronomical Society of Canada Royal Astronomical Society of New Zealand, Variable Star Section Sociedad Astronomica 'Syrma' (Valladolid, Spain) Svensk AmatorAstronomisk Forening, variabelsektionen (Sweden) Uniao Brasileira de Astronomia, Variable Star Commission (Brazil) Unione Astrofili Italiani (UAI) Variable Star Observers League in Japan Vereniging Voor Sterrenkunde, Werkgroep Veranderlijke Sterren (Belgium) --------------------------------------------------------------------------- PAGE ix INFORMATION ON PU VULPECULAE Right Ascension Declination Position: (1900) 20h 16m 49s +21 degrees 15.2' (1950) 20 19 01 +21 24.7 (2000) 20 21 13 +21 34.3 Type: Symbiotic eclipsing nova type cataclysmic variable (Nova Vulpeculae 1979) Orbital Period: 13.42 +/- 0.02 years Spectrum: A4II-F8IAB+M6IIIE KEY TO SYMBOLS Symbols used in this monograph are: . = 1 visual observation v = variable is fainter than the magnitude indicated by the vertex of the "v" on the light curve (variable not seen) Please note that there may appear to be horizontal lines in some parts of the light curves. These "lines" are in fact very dense concentrations of individual observations. -------------------------------------------------------------------------- PAGE x PU VULPECULAE LIGHT CURVES 1979 - 1995 --------------------------------------------------------------------------- PAGES 1 - 4 Caption for long-term light curve AAVSO long-term light curve of 2016+21 PU Vulpeculae for JD 2443973 - 2450083 (April 1979 - December 1995). All observations are visual and are taken from the AAVSO International Database. ---------------------------------END OF FILE-------------------------------