COMMISSION 27 OF THE I.A.U.

INFORMATION BULLETIN ON VARIABLE STARS

Nos. 1901-2000

1980 December - 1981 August

EDITOR: BELA SZEIDL, KONKOLY OBSERVATORY

1525 BUDAPEST, Box 67, HUNGARY

HU ISSN 0374-0676

C O N T E N T S

1980 No Page 1901 J. SMAK: The 1981 Eclipse of RZ Oph ...... 1-2 1902 J.A. EATON, D.S. HALL, G.W. HENRY, H.J. LANDIS, TH. G. McFAUL and TH. R. RENNER: 12 Camelopardalis: A New Variable Star ...... 1-5

1981

1903 D. BOHME: GY Cygni ...... 1-2 1904 H. HUTH: Sky Patrol Observations of Probable Nova Cygni 1980(Honda) ...... 1 1905 B. FUHRMANN:The Present Brightness Minimum of TT Arietis ...... 1 1906 G. ASTERIADIS, F. MAHMOUD and L.N. MAVRIDIS: Photoelectric Observations of the Flare Star AD Leo in 1976 ...... 1-3 1907 G. ASTERIADIS, F. MAHMOUD and L.N. MAVRIDIS: Photoelectric Observations of the Flare Star BD+1602708 in 1976 ...... 1-2 1908 Z. ASLAN, A. ASIR, S. ENGIN, Z. TUFEKCIOGLU and N. YILMAZ: Times of Minima for Seven Eclipsing Binaries ...... 1-2 1909 S.L. LIPARI:V 758 Cen, Light Curve and Study of the Period ...... 1-3 1910 D.P. HAYES and R.A. RUSSO: Mira's Linear Polariza- tion near the 1980 Light Maximum ..... 1-2 1911 F. JABLONSKI: Fast Photometry of AE Aqr ...... 1-2 1912 A.S. SHAROV and G.R. IVANOV: Possible Hubble- Sandage Objects among Variables Discov- ered in the Andromeda Galaxy ...... 1-2 1913 A. DI PAOLANTONIO, R. PATRIARCA and P. TEMPESTI Light Curve and Characteristic Photo- metric Parameters of Nova Cygni 1978 (V 1668 Cyg) ...... 1-8

1914 P. NORTH: The Period of the Bp Star HD 213918.... 1-3 1915 D.W. KURTZ: Discovery of 6.15 Minute Oscillations in the Cool Magnetic Ap Star HD 24712.. 1-4 1916 C. CRISTESCU, G. OPRESCU and M.D. SURAN: Photoelec- tric Observations and New Elements for KO Aquilae ...... 1-3 1917 R.M. GENET: Photoelectric Observations of R CrB ... 1-2 1918 T.P. PRABHU and M.V. MEKKADEN: Honda's Variable in Cygnus: A New Long Period Variable ..... 1-3 1919 R.K. SRIVASTAVA and B.K. SINHA: A Note on BZ Eridani 1-3 1920 A. DAPERGOLAS, G. DI COLA, A. GUARNIERI and G.MADAMA: Photoelectric Photometry of Some Be Stars 1-3 1921 P.N. KHOLOPOV, N.N. SAMUS, N.P. KUKARKINA, G.I. MEDVEDEVA and N.B. PEROVA: 65th Name- List of Variable Stars ...... 1-21 1922 E.F. GUINAN and E.M. SION: A Complete Optical Light Curve of the Hyades Eclipsing Binary V471 Tauri with the IUE Satellite ..... 1-5 1923 J. KELEMEN: Photoelectric Minima of the Eclipsing Binary PV Cassiopeiae ...... 1-2 1924 E. POHL and O. GULMEN: Photoelectric Minima of Eclipsing Binaries ...... 1-3 1925 I.D. HOWARTH: Photometry of WZ Sge ...... 1-2 1926 R. SH. NATSVLISHVILI: Flare Stars in Orion ...... 1-3 1927 G.W. HENRY: HD 175742: A New RS CVn Variable ..... 1-2 1928 G.W. HENRY: HD 178450: A New RS CVn Variable ..... 1-3 1929 C. and M. WAELKENS, F. RUFENER: The Variability of HR 1081= TU Hor ...... 1-3 1930 TH. E. MARGRAVE: Photoelectric Times of Minima of Eclipsing Binaries ...... 1-2 1931 P. HARMANEC, J. HORN, P. KOUBSKY and J.ZIZINOVSKY: Call for Systematic Photoelectric Obser- vations of CX Dra ...... 1-3 1932 M. HOFFMANN: RV CVn, A Remarkable Short Period Eclipsing Binary ...... 1-3

1933 M. HOFFMANN: B and Mg Band Observations of AH Vir in 1977 ...... 1-4 1934 M. HOFFMANN: Photometric Observations of the Short Period W UMa System BM UMa ...... 1-3 1935 M. HOFFMANN: Photoelectric Photometry of BF Pavonis 1-3 1936 M. HOFFMANN: A Photometry of AZ Vir ...... 1-3 1937 S. EVREN, O. TUMER, Z. TUNCA, A.Y. ERTAN, M. KURUTAC and E. IBANOGLU: The Maximum Times and New Light Elements of x Bootis ...... 1-2 1938 E.C. OLSON: Times of Minima of Ten Algol-Like Binaries ...... 1-3 1939 L. BALDINELLI, A. FERRI and S. GHEDINI: 1980 Eclipse of EE Cephei: Light Curves and Time of Minimum ...... 1-3 1940 G. WELIN: CD -30d5135 ...... 1 1941 Z. ASLAN: On the Period of Light Variation in the RS CVn System HD 86590 ...... 1-4 1942 TH. BERTHOLD: Remarks on 6 Variable Stars ...... 1-3 1943 F.M. MAHMOUD and KATALIN OLAH: Photoelectric Obser- vations of EV Lac ...... 1-4 1944 B.N. BATYUSHKOVA: The Shock Radiation Effect on the Pulsating Variable Stars' Light and Colour Curves ...... 1-4 1945 R. GRAVINA: Spectroscopic Observation of CI Cygni in 1980 ...... 1-2 1946 J.R. PERCY: Photometric Variability of Kappa Cassiopeiae ...... 1-2 1947 C.R. COWLEY and P. RENSON: Liege Symposium No.23.. 1 1948 D.W. KURTZ: Radial and Non-Radial Oscillations in HD 116994(V743 Cen) ...... 1-8 1949 P. BROGLIA and P. CONCONI: New Light Elements of TY Ursae Majoris ...... 1-2 1950 H.M. MAITZEN: Variability of the Extreme Silicon Star Alpha Dor - HD 29305 ...... 1-4 1951 E. HAMZAOGLU: Further Spectroscopic Observations of BD +16d516(V 471 Tauri) ...... 1-4

1952 T. KOGURE, Y. ASADA, K. ICHIMOTO and M. SUZUKI: Anomalous VJR Variation in EW Lac ..... 1-4 1953 JOANNA MIKOLAJEWSKA and M. MIKOLAJEWSKI: Light Curve Variation and Period Behaviour of SW Lacertae ...... 1-5 1954 EMILIA P. BELSERENE: Elements For V1714 Sgr ...... 1 1955 B. STOLZ and R. SCHOEMBS: TU Men, A New Member of the SU UMa Subgroup of Dwarf Novae ...... 1-4 1956 M.I. KIBARDINA and L.A. OURASSINE: Coordonnees de supernova 1981 dans NGC 4536 ...... 1 1957 P. ALPHENAAR and F. VAN LEEUWEN: Variable Stars in the Pleiades Cluster ...... 1-5 1958 W.P. BIDELMAN: Variable Stars in the LSS Catalogue 1-3 1959 A. BIANCHINI and F. SABBADIN: Spectral Changes in GK Per (1901) ...... 1 1960 S.F. MARTON and A. GRIECO: RW Dor, Light Curve and Study of the Period ...... 1-3 1961 LEE ANNE WILLSON, P. GARNAVICH and JANET AKYUZ MATTEI: The 1978 Eclipse of R Aquarii ...... 1-4 1962 P.G. NIARCHOS: Photoelectric Minima of the Eclipsing Variable VW Cephei ...... 1-2 1963 U. HOPP and S. WITZIGMANN: Is AE Aur a Variable Star? ...... 1-2 1964 R. BAKKER and A.M. VAN GENDEREN: New VBLUW Observa- tions of the Yellow Variable Super- Giant Tr 27- 102= HD 159378 ...... 1-4 1965 CHI-CHAO WU and J.A. EATON: ANS Observations of DH Cep, CV Vel and RS Vul ...... 1-4 1966 M. BREGER, J.C. HSU and E. BOZYAN: A Search for Maia Variables ...... 1-2 1967 A.P. LINNELL: UBVRI Times of Minima of VW Cephei .. 1-3 1968 H.M. MAITZEN: Seven-Colour-Photometry of the Silicon Variable HD 37808 ...... 1-3 1969 J.L. AFRICANO and A. KLIMKE: Eclipse Timings of Stepanian's Star ...... 1 1970 R. PENICHE and J.H. PENA: HD 114842, a New Short Period Variable Star ...... 1-4

1971 K.P. PANOV, M.K. TSVETKOV: Photoelectric Observa- tions of the Flare Star EV Lac in 1980 1-5 1972 A. ALKSNIS, L. ZACS: Extragalactic Nova or Unusual U Gem-Type Variable?...... 1-2 1973 E. LAPASSET, J.J. CLARIA: CT Eri: Photoelectr.ic Times of Minimum and Improved Period... 1-6 1974 T.S. BELYAKINA: Eclipse in CI Cyg Binary-System in 1980...... 1-3 1975 A.V. RAVEENDRAN, M.V. MEKKADEN and S. MOHIN: On the Photometric Period of HD 81410...... 1-2 1976 M. HOFFMANN: Photometric Observations of V523 Cas. 1-3 1977 M. HOFFMANN: Observations of Southern dMe Stars in 1975 ...... 1-4 1978 M. HOFFMANN: Light Curves of DD Com and TY UMa .... 1-4 1979 M. HOFFMANN: Observations of Variable Stars Acciden- tally Found on Minor Planet Patrol Plates 1-3 1980 M. HOFFMANN: Observations of TZ Boo, BL Leo, and V524 Mon ...... 1-3 1981 JOHN A.R. CALDWELL: Photometry and Distance of Nova Corona Austrina 1981...... 1-3 1982 I. PLATAIS, S. SHUGAROV: Photoelectric Observations of the Low-Amplitude Cepheid V1726 Cyg. 1-3 1983 M. IMBERT: Nature de la Variable UY Mon ...... 1-4 1984 DANIEL P. HAYES: B-Filter Linear Polarization Meas- urement of u Cep in the Autumn of 1980. 1-3 1985 A.C. DE LANDTSHEER: A Photoelectric Time of Minimum of TV Cas in Four Colours ...... 1-2 1986 R. SCHOEMBS, B.STOLZ: Rapid Oscillations in RR Pic- toris ...... 1-4 1987 D.W. KURTZ, M.S. CROPPER: The Discovery of 6.8 Minute Oscillations in alpha Cir ...... ,...... 1-3 1988 A. BIANCHINI, F. SABBADIN and E: HAMZAOGLU: The Or- bital Period of the Old-Nova GK Per (1901) 1-2 1989 H. BARWIG, R. SCHOEMBS: Observations of SU UMa before and during a Superoutburst ...... 1-4 1990 J.B. SRIVASTAVA C.D. KANDPAL: Photoelectric Observa- tions of VZ Cas ...... 1-2

1991 L. KOHOUTEK, R. PAULS and H.-M. STEINBACH: Light Variability of Nova Delphini 1967 in 1980 1-4 1992 ANTONIO J. DELGADO, RAFAEL GARRIDO: Photometric Va- riability of 10 Lacertae ...... 1-2 1993 L. BALDINELLI, A. FERRI and S. GHEDINI: UBV Observa- tions of 88 Her (V744 Her) ...... 1-2 1994 P. ROVITHIS, H. ROVITHIS-LIVANIOU: Photoelectric Ob- servations of BV Draconis ...... 1-2 1995 MICHAEL ZEILIK, PAUL HECKERT, GARY HENSON and PAUL SMITH: Infrared Photometry of Beta Lyrae. 1-4 1996 R. HAEFNER: HD 224113- a New Eclipsing, Double-Lined Binary ...... 1-4 1997 J. ZVERKO, D. CHOCHOL, K. JUZA and J. ZIZNOVSKY: AR Aurigae - Triple System? ...... 1-3 1998 D. CHOCHOL, A. KUCERA: Search for the Period of the Binary Shell Star V 505 Monocerotis ..... 1-4 1999 G. ROMANO: New Variable Stars in the Field Around MV Lyrae ...... 1-2 2000 C. BLANCO, S. CATALANO E. MARILLI, M. RODONO and F. SCALTRITI: A Dramatic Change in the Light Curve of V711 Tau (HR 1099) ...... 1-4

A U T H 0 R I N D E X

Africano, J.L. 1969 Haefner, R. 1996 Alksnis, A. 1972 Hall, D.S. 1902 Alphenaar, P. 1957 Hamzaoglu, E. 1951,1988 Asada, Y. 1952 Harmanec, P. 1931 Asir, A. 1908 Hayes, D.P. 1910,1984 Aslan, Z. 1908, 1941 Heckert, P. 1995 Asteriadis, G. 1906, 1907 Henry, G.W. 1902, 1927, Bakker, R. 1964 1928 Baldinelli, L. 1939, 1993 Henson, G. 1995 Barwig, H. 1989 Hoffmann, H. 1932,1933, Batyushkova, B.N. 1944 1934, 1935, 1936, 1976, Belserene, E.P. 1954 1977,1978,1979,1980 Belyakina, T.S. 1974 Hopp, U. 1963 Berthold, Th. 1942 Horn, J. 1931 Bianchini, A. 1959,1988 Howarth, I.D. 1925 Bidelman, W.P. 1958 Hsu, J.C. 1966 Blanco, C. 2000 Huth, H. 1904 Bozyan, E. 1966 Ibanoglu, E. 1937 Bohme, D. 1903 Ichimoto, K. 1952 Breger, M. 1966 Imbert, M. 1983 Broglia, P. 1949 Ivanov, G.R. 1912 Caldwell, J.A.R. 1981 Jablonski, F. 1911 Catalano, S. 2000 Juza, K. 1997 Chochol, D. 1997,1998 Kandpal, C.D. 1990 Claria, J.J. 1973 Kelemen, J. 1923 Conconi, P. 1949 Kholopov, P.N. 1921 Cowley, C.R. 1947 Kibardina, M.I. 1956 Cristescu, C. 1916 Klimke, A. 1969 Cropper, M.S. 1987 Kogure, T. 1952 Dapergolas, A. 1920 Kohoutek, L. 1991 De Landtsheer, A.C. 1985 Koubsky, P. 1931 Delgado, A.J. 1992 Kucera, A. 1998 Di Cola, G. 1920 Kukarkina, N.P. 1921 Di Paolantonio, A. 1913 Kurtz, D.W. 1915,1948, Eaton, J.A. 1902,1965 1987 Engin, S. 1908 Kurutac, M. 1937 Ertan, A.Y. 1937 Landis, H.J. 1902 Evren, S. 1937 Lapasset, E. 1973 Ferri, A. 1939,1993 Linnell, A.P. 1967 Fuhrmann, B. 1905 Lipari, S.L. 1909 Garnavich, P. 1961 Madama, G. 1920 Garrido, R. 1992 Mahmoud, F.M. 1906,1907, Genet, R.i,I. 1917 1943 Ghedini, S. 1939,1993 Maitzen, H.M. 1950,1968 Gravina, R. 1945 Margrave, Th.E. 1930 Grieco, A. 1960 Marilli, E. 2000 Guarnieri, A. 1920 Marton, S.F. 1960 Guinan, E.F. 1922 Mattei, J.A. 1961 Gulmen, O. 1924 Mavridis, L.N. 1906,1907 McFaul, Th. G. 1902 Scaltriti, F. 2000 Medvedeva, G.I. 1921 Schoembs, R. 1955,1986, Mekkaden, M.V. 1918,1975 1989 Mikolajewska, J. 1953 Sharov, A.S. 1912 Mikolajewski, M. 1953 Shugarov, S. 1982 Mohin, S. 1975 Sinha, B.K. 1919 Natsvlishvili, R.Sh. 1926 Sion, E.M. 1922 Niarchos, P.G. 1962 Smak, J. 1901 North, P. 1914 Smith, P. 1995 Olah, K. 1943 Srivastava, R. 1919,1990 Olson, E.C. 1938 Steinbach, H.M. 1991 Oprescu, G. 1916 Stolz, B. 1955,1986 Ourassine, L.A. 1956 Suran, M.D. 1916 Panov, K.P. 1971 Suzuki, M. 1952 Patriarca, R. 1913 Tempesti, p. 1913 Pauls, R. 1991 Tsvetkov, M.K. 1971 Pena, J.H. 1970 Tunca, Z. 1937 Peniche, R. 1970 Tufekcioglu, Z. 1908 Percy, J.R. 1946 Tumer,O. 1937 Perova, N.B. 1921 Van Genderen, A.M.1964 Platais, I. 1982 Van Leeuwen, F. 1957 Pohl, E. 1924 Waelkens, C. 1929 Prabhu, T.P. 1918 Waelkens, M. 1929 Raveendran, A.V. 1975 Welin, G. 1940 Renner, Th.R. 1902 Willson, L.A. 1961 Renson, P. 1947 Witzigmann, S. 1963 Rodono, M. 2000 Wu, Ch.-Ch. 1965 Romano, G. 1999 Yilmaz, N. 1908 Rovithis-Livaniou,H. 1994 Zacs, L. 1972 Rovithis, P. 1994 Zeilik, M. 1995 Rufener, F. 1929 Ziznovsky, J. 1931,1997 Russo, R.A. 1910 Zverko, J. 1997 Sabbadin, F. 1959,1988 Samus', N.N. 1921

INDEX OF VARIABLES

RT And 1924 RZ Cas 1924,1930 XZ 1938 TV 1930,1985 AB 1924 TW 1924,1930 EP 1942 VZ 1990 KX 1920 DO 1930 Omicron 1920 PV 1923,1924 R Aqr 1961 V523 1976 AE 1911 Kappa 1946 KO Aql 1916,1930,1938 SV Cen 1958 BH 1958 V 616 Ara 1958 LW 1958 RX Ari 1908 LZ 1958 TT 1905 MO 1958 MP 1958 AE Aur 1963 QS 1958 AR 1997 V346 1958 BD+1602708 1907 V350 1958 V378 1958 TZ Boo 1924,1980 V606 1958 44i 1924 V644 1958 Kappa 1937 V743 1948 SV Cam 1924 V758 1909 12=HR 1623 1902 V801 1958 V808 1958 UW CMa 1958 V809 1958 VZ 1958 Omicron^2 1958 EY 1958 VW Cep 1924,1962,1967 EZ 1958 DH 1965 FN 1958 EE 1939 FR 1958 EG 1924 FV 1958 Mu 1984 FY 1958 Mira (Omicron) Cet 1910 GY 1958 HI 1958 Alpha Cir = HD 128898 1987 RV CVn 1932 CoD -37d15492 1977 SX Car 1958 CoD -30d5135 1940 AG 1958 CoD -23d 693 1977 CO 1958 DD Com 1978 DW 1958 R CrB 1917 EM 1958 GG 1958 AB Cru 1958 GI 1958 BI 1958 GL 1958 BS 1958 GX 1958 BT 1958 HH 1958 BU 1958 HI 1958 BV 1958 HP 1958 BW 1958 HR 1958 CSV 1575 1958 QU 1958 CSV 1980 1958 QY 1958 CSV 2361 1979 QZ 1958 CSV 2944 1958 V348 1958 CSV 3422 1979 V369 1958 CSV 4566 1979 V380 1958 CSV 5844 1942 V381 1958 CSV 6531 1958 Eta 1958 CSV 6701 1958 CSV 6725 1958 HD 37808 1968 CSV 6754 1958 HD 81410 1975 CSV 6778 1958 HD 86590 1941 CSV 6824 1958 HD 114842 1970 CSV 6825 1958 HD 128898=Alpha Cir 1987 CSV 6978 1958 HD 159378 1964 CSV 7023 1958 HD 175742 1927 CSV 7144 1958 HD 178450 1928 CSV 7170 1958 HD 213918 1914 CSV 7175 1958 HD 224113 1996 CSV 7750 1958 TX Her 1924 CSV 101151 1958 AK 1924 CSV 101159 1958 BL 1944 CSV 101636 1958 DI 1924 CSV 101659 1958 V744 1993 CSV 101660 1958 4 1920 CSV 102512 1958 CSV 102598 1958 TU Hor 1929 CSV 102608 1958 HR 894 1920 C5V 102624 1958 HR 1099=V711 Tau 2000 CSV 102634 1958 HR 1623=12 Cam 1902 CSV 102640 1958 C5V 102653 1958 Hubble-Sandage Objects: CSV 102656 1958 H11, H22,H43,H44 in M31 1912 CSV 102657 1958 Huruhata's Object in CMi 1942 CSV 102659 1958 CSV 102670 1958 RT Lac 1924 C5V 102717 1958 SW 1908,1924,1953 CSV 102803 1958 EV 1943,1971 CSV 102812 1958 EW 1952 CSV 102814 1958 10 1992 SW Cyg 1938 UV Leo 1924 CI 1945,1974 XY 1924 GY 1903 AD 1906 V466 1942 BL 1980 V1668=Nova Cyg 1978 1913 TZ Lyr 1908 V1726 1982 Beta 1995 W Del 1938 Maia Variables 1966 HR=Nova Del 1967 1991 RW Dor 1960 TU Men 1955 Alpha=HD 29305 1950 AU Mic 1977 AI Dra 1924 RW Mon 1938 BV 1994 UY 1983 CX 1931 V505 1998 Kappa 1920 V524 1980 1919 V569 1958 BZ Eri 1919 V644 1958 CT 1973 TU Mus 1958 Flare Stars: Theta 1958 in Orion (22+8) 1926 UW Gem 1979 New and Suspected Variables (See also Flare Stars): Gl 54.1 1977 12 Cam = HR 1623 1902

HD 24712 1915 CoD -37d15492 1977 HD 29305=Alpha Dor 1950 CoD -23d 693 1977 Gl 54.1 1977 GR 306-309 1999 AI 1958 HD 24712 1915 EG 1942 HD 29305=Alpha Dor 1950 MV 1958 HD 81410 1975 V 771 1958 HD 114842 1970 V1714 1954 HD 128898=Alpha Cir 1987 V2349 1958 HD 175742 1927 V3892 1958 HD 178450 1928 V3899 1958 HD 213918 1914 V3903 1958 HD 224113 1996 V4029 1958 65 th Name List 1921 V4030 1958 in Pleiades(10) 1957 Mu 1958 10h31m19s+31d24'(1950) 1972 15h07m9-9d18' (1950) 1979 CL Sco 1958 V457 1958 QU Nor 1958 V474 1958 Mu 1958 V499 1958 Novae: V700 1958 Nova CrA 1981 1981 V861 1958 Nova Cyg 1978=V1668Cyg 1913 V884 1958 possible Nova Cyg 1980 V900 1958 (Honda) 1904,1918 V905 1958 Nova Del 1967=HR Del 1991 V918 1958 Nova Per 1901=GK Per 1959,1988 V919 1958 Novae 26,36,39 in V920 1958 M31 1912 X Sct 1958 U Oph 1908 RY 1958 RV 1938 V430 1958 RZ 1901 LX Ser (=Stepanians Star) 1969 V566 1924 V2024 1958 Supernova V2076 1958 SN 1981 in NGC 4536 1956 CZ Ori 1958 RW Tau 1938 BU 1920 BF Pav 1935 HU 1924 U Peg 1908,1924 V471 1922,1924,1951 AT 1930 V711=HR 1099 2000 DI 1908 X Tri 1938 ST Per 1938 W UMa 1924 GK 1959,1988 SU 1989 Phi 1920 TY 1949,1978 RR Pic 1986 BM 1934 VX Pup 1958 Variables in Clusters: KY 1958 in Pleiades (10) 1957 NV 1958 AA Vel 1958 MX 1958 CV 1965 OW 1958 FY 1958 PW 1958 GP 1958 GW 1958 Romano Variables GX 1958 GR 306- 309 1999 Gamma 1958 SAO 077615 1942 AH Vir 1933 U Sge 1938 AZ 1936 WZ 1925 RS Vul 1965 V Sgr 1958 ER 1908