COMMISSION 27 OF THE I.A.U. INFORMATION BULLETIN ON VARIABLE STARS. Nos November 1977 July
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1 COMMISSION 27 OF THE I.A.U. INFORMATION BULLETIN ON VARIABLE STARS Nos November 1977 July EDITOR: B. SZEIDL, KONKOLY OBSERVATORY 1525 BUDAPEST, Box 67, HUNGARY
2 CONTENTS 1201 HS AURIGAE D.M. Popper 9 November SPECTROSCOPIC OBSERVATIONS OF 53 Ari M.C. Lane 10 November AN IMPROVED PERIOD OF V387 Cyg T. Berthold CORRECTION TO IBVS No E. Pohl, A. Kizilirmak 15 November IS THE VARIABLE WX CETI A NOVA? S.I. Gaposhkin 15 November OBSERVATIONS OF RECENT NOVAE H. Huth 19 November PHOTOGRAPHIC OBSERVATIONS OF GU Sgr Dorrit Hoffleit 19 November IMPROVED RESULTS FOR SEVEN SAGITTARIUS VARIABLES Dorrit Hoffleit 23 November FURTHER COMMENTS ON THE PERIOD OF V743 Cen E.H. Geyer 23 November THE DOUBLE-MODE CEPHEIDS GZ Car AND UZ Cen R.S. Stobie 25 November PHOTOELECTRIC OBSERVATIONS OF UV CETI B.B. Sanwal 29 November A TENTATIVE SPECTROSCOPIC ORBIT OF Theta1 Ori A E. Lohsen 1 December COPERNICUS OBSERVATIONS OF THE NON-ECLIPSING RS CVn BINARY HR 1099 E.J. Weiler 2 December SPECTRAL INFORMATION ON NEW AND KNOWN LONG-PERIOD AND RELATED VARIABLES AND SOME NEW LATE-TYPE EMISSION-LINE STARS C.B. Stephenson, N. Sanduleak 5 December 1976
3 1214 ECLIPSING BINARIES FOUND SPECTROSCOPICALLY III. HD H.E. Bond 7 December Pi PISCIS AUSTRINI H.E. Bond 7 December INFRARED AND OPTICAL PHOTOMETRY OF T Tau AND RY Tau IN E.A. Kolotilov, G.V. Zajtseva, V.I. Shenavrin 13 December REMARK ON THE PERIOD OF AU MONOCEROTIS I. Todoran 13 December THE SPECTRUM OF WX HYDRI N. Sanduleak 16 December SHORT TERM PERIODICITY OF V1500 CYGNI IN JULY-AUGUST OF 1976 V.V. Prokof'eva, A.N. Abramenko 16 December AN EXTREME REDDENING OF THE CARBON STAR RW LMi = CIT 6 A. Alksnis, I. Eglitis 20 December ON THE PERIOD BETWEEN FLARES OF V1216 SAGITTARII A.H. Jarrett, G. Grabner 23 December LIGHT CURVE OF THE EMISSION VARIABLE IN SAGITTA W. Wenzel 27 December PHOTOELECTRIC OBSERVATIONS OF u HERCULIS AND A REMARK ON ITS PERIOD T.J. Herczeg 30 December IMPROVED LIGHT ELEMENTS OF HX Arae K. Walter, H.W. Duerbeck 30 December VARIABLE STAR IN EE CEPHEI COMPARISON SEQUENCE L. Baldinelli, S. Ghedini 30 December PHOTOELECTRIC UBV PHOTOMETRY OF SY For N. Vogt 7 January REMARKS CONCERNING IZ CYGNI N. Sanduleak, W.P. Bidelman 7 January PHOTOGRAPHIC AND PHOTOELECTRIC OBSERVATIONS OF RZ Oph L. Baldinelli, S. Ghedini 10 January 1977
4 1229 VARIABLE STARS IN THE GLOBULAR CLUSTER NGC 6362 C.R. Fourcade, J.R. Laborde, A.A. Puch, J.R. Colazo 12 January uvby PHOTOMETRY OF THE SUSPECTED VARIABLE Omega2 Sco C. Sterken 19 January NN CEPHEI AND PP LACERTAE A. Figer, R. Rolland 24 January Theta2 TAURI A POSSIBLE NEW DELTA SCUTI STAR S. Horan 25 January PHOTOELECTRIC PHOTOMETRY OF NOVA VULPECULAE C.R. Chambliss 31 January PROGRAMME OF COOPERATIVE FLARE STAR OBSERVATIONS FOR 1977 L.N. Mavridis 31 January PHOTOELECTRIC OBSERVATIONS OF UW CMa Hitoshi Ogata, Chiaki Hukusaku 1 February PHOTOELECTRIC PHOTOMETRY OF Lambda ANDROMEDAE H.J. Landis, L.P. Lovell, D.S. Hall, R.W. Kelley 10 February PERIOD CHANGES OF THE EARLY TYPE ECLIPSING BINARY SZ CAMELOPARDALIS D. Chochol 10 February OBSERVATIONS OF PRIMARY MINIMUM OF Theta1 Ori A M.F. Walker 14 February A PERIOD-LUMINOSITY RELATION FOR SHORT PERIOD MIRA VARIABLES K. Ferrari d'occhieppo 14 February FOUR-COLOUR PHOTOMETRY OF THE BRIGHT SOUTHERN VARIABLE HD C. Sterken 15 February VARIABILITY OF HR 904 AND HR 8421 A.E. Lynas-Gray, P.W. Hill 16 February ETOILES VARIABLES DE GRANDE PARALLAXE M. Petit 18 February ABSOLUTE MAGNITUDES AND LOCAL FREQUENCY OF Beta CEPHEI STARS K. Ferrari d'occhieppo 18 February 1977
5 1244 ON THE PERIOD OF THE ECLIPSING BINARY RW PERSEI W. van Hamme 21 February ON THE BLAZHKO EFFECT IN AR Ser B.N. Firmanyuk 28 February RADIAL VELOCITIES OF Me-TYPE STARS M. Ibanez 1 March Pup B: A NEW BRIGHT ECLIPSING BINARY Bo Reipurth 7 March nd NAME-LIST OF VARIABLE STARS B.V. Kukarkin, P.N. Kholopov, V.P. Fedorovich, N.N. Kireyeva, N.P. Kukarkina, G.I. Medvedeva, N.B. Perova 9 March MINIMA OF ECLIPSING VARIABLES A.D. Mallama, D.R. Skillman, P.A. Pinto, B.A. Krobusek 14 March cm FLUX MEASUREMENTS OF BL LACERTAE K. Krisciunas 15 March PHOTOMETRY OF RW Tri SIMULTANEOUSLY IN TWO COLOURS L. Winkler 17 March A NEW ECLIPSING BINARY IN CYGNUS Dorrit Hoffleit 18 March UBVR PHOTOMETRY OF SU TAURI A.U. Landolt 23 March PHOTOELECTRIC MINIMA OF AB And AND X Tri Z. Tufekcioglu 24 March MINIMA OF ECLIPSING VARIABLES J.M. Kreiner, M. Winiarski 25 March V381 CYGNI AN RR LYRAE TYPE STAR Dorrit Hoffleit 25 March HD : A DELTA SCUTI VARIABLE C.J. McInally, B.J. McKay 29 March ON THE NON-VARIABILITY OF BD +74d877 L. Winkler 31 March 1977
6 1259 PHOTOELECTRIC OBSERVATIONS OF DELTA CETI Zeynel Tunca 5 April ON THE VISIBLE-BAND POLARIZATION OF HR 1099A R.H. Koch, R.J. Pfeiffer 7 April THE OPTICAL COUNTERPART OF A AT MINIMUM F. Ciatti, A. Vittone 8 April HV 1707: A VARIABLE CARBON STAR IN THE SMALL MAGELLANIC CLOUD N. Sanduleak, A.G.D. Philip 8 April STATISTICS ON FLARE OBSERVATIONS OF UV Cet, YZ CMi AND AD Leo AT THE UTTAR PRADESH STATE OBSERVATORY S.D. Sinvhal, B.B. Sanwal 12 April THE ACCELERATION OF THE ROTATION OF DQ Her E. Lohsen 13 April INTERMEDIATE BAND LIGHT CURVES FOR FIVE SOUTHERN HD STARS A.F.J. Moffat 15 April FLARE ACTIVITY ON G12-30 G.J. Veeder, O.L. Hansen 18 April ETOILES VARIABLES PROCHES M. Petit 18 April PHOTOELECTRIC PHOTOMETRY OF FG SAGITTAE C.A. Whitney 19 April REQUEST FOR PHOTOMETRIC OBSERVATIONS OF U CEPHEI E.C. Olson 19 April PHOTOMETRY OF HD H.J. Trodahl, D.J. Sullivan 21 April A FLARE EVENT ON THE dm0e VARIABLE BY DRACONIS M.H. Slovak 25 April ELEMENTS OF RV CRATERIS = BV 442 E. Schoeffel, J. Rahe 4 May TWO DELTA SCUTI STARS IN THE PLEIADES M.A. Seeds, C.J. Stephens 5 May 1977
7 1274 UBV OBSERVATIONS OF A PRIMARY ECLIPSE OF Theta1 Ori A O.G. Franz 9 May CSV A RED DWARF VARIABLE I.C. Busko, G.R. Quast, C.A.O. Torres 11 May PERIOD CHANGE OF THE RADIO BINARY RY SCUTI W. Wenzel, H. Gessner 12 May ON THE CONNECTION BETWEEN PULSATIONS OF RY Sgr AND THE TOTAL LIGHT DECLINES A.F. Pugach 17 May UBV PHOTOMETRY OF THE ECLIPSING BINARY SX AURIGAE C.R. Chambliss 18 May A SMALL AMPLITUDE VARIABLE STAR, HD E.W. Burke, Jr., E.W. Burke, III, S. Lady 18 May PERIODICITE D'ETOILES Ap AUSTRALES P. Renson 20 May THE VARIABILITY OF PQ NORMAE = BV 1556 = HD E. Schoeffel 24 May V1068 CYGNI, A LONG-PERIOD ECLIPSING BINARY Dorrit Hoffleit 25 May WANTED: PHOTOELECTRIC AND SPECTROSCOPIC OBSERVATIONS OF THE UNUSUAL SYSTEM, V389 CYGNI Dorrit Hoffleit 25 May BD -3d5357 AN UNUSUAL ECLIPSING BINARY M.M. Dworetsky, H.H. Lanning, P.E. Etzel, D.J. Patenaude 26 May ON THE PERIOD OF SW Lac Zofia Frasinska, J.M. Kreiner 27 May UBV PHOTOMETRY OF VV CEPHEI NEAR INGRESS A.U. Landolt 30 May SEVEN-COLOUR PHOTOMETRY OF THE VARIABLE HD C. de Loore, C. Sterken CORRECTION TO IBVS No E.C. Olson 31 May 1977
8 1288 THREE NEWLY DISCOVERED VARIABLE Ap STARS E.W. Burke, Jr., S. Lady 6 June OBSERVATIONS OF ECLIPSING BINARIES AT THE NEW NATIONAL OBSERVATORY OF ATHENS, KRYONERION, GREECE E. Budding, A.R. Sadik, P. Niarchos, D.H. Jassur 6 June V1705 AND V1706 Sgr Dorrit Hoffleit 7 June PHOTOELECTRIC OBSERVATIONS OF THE SYMBIOTIC VARIABLE STAR EG And P. Tempesti 13 June FLARE ACTIVITY ON Gl 569 O.L. Hansen, G.J. Veeder 14 June A PHOTOELECTRIC SEARCH FOR OPTICAL VARIABILITY IN BLUE STRAGGLERS B.J. Hrivnak 15 June SEVEN COLOUR PHOTOMETRY OF THE DELTA SCUTI STAR 27 Vir C. Sterken 20 June HR 4668: A NEW BRIGHT VARIABLE STAR Gh. Deridder, C. Sterken, D. Vanbeveren 20 June Omicron ANDROMEDAE: NO CONSPICUOUS RADIAL-VELOCITY VARIATIONS P. Harmanec, P. Koubsky, J. Krpata, F. Zdarsky, A. Dolenska 27 June FURTHER LIGHT CURVE VARIATIONS OF SZ PISCIUM J.A. Eaton 4 July HD 56429: A DOUBLE-LINED Am ECLIPSING BINARY D.M. Popper, J. Andersen 4 July A SEARCH FOR LONG PERIOD CEPHEIDS IN NORMA A.L. Cabrera, J.C. Muzzio, G. Sanchez 5 July IDENTIFICATION OF HV 5824 AND HV 5967 WITH PLANETARY NEBULAE N. Sanduleak CORRECTION TO IBVS No PHOTOELECTRIC MINIMA OF AB And AND X Tri Z. Tufekcioglu CORRECTION TO IBVS No P. Renson 5 July 1977
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COMMISSION 27 OF THE I.A.U. INFORMATION BULLETIN ON VARIABLE STARS. Nos May 1976 February
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