COMMISSION 27 OF THE I.A.U.
INFORMATION BULLETIN ON VARIABLE STARS
Nos. 2401 - 2500
1983 September - 1984 March
EDITORS: B. SZEIDL AND L. SZABADOS, KONKOLY OBSERVATORY
1525 BUDAPEST, Box 67, HUNGARY
HU ISSN 0374-0676
CONTENTS
2401 A POSSIBLE CATACLYSMIC VARIABLE IN CANCER
Masaaki Huruhata
20 September 1983
2402 A NEW RR-TYPE VARIABLE IN LEO
Masaaki Huruhata
20 September 1983
2403 ON THE DELTA SCUTI STAR BD +43d1894
A. Yamasaki, A. Okazaki, M. Kitamura
23 September 1983
2404 IQ Vel: IMPROVED LIGHT-CURVE PARAMETERS
L. Kohoutek
26 September 1983
2405 FLARE ACTIVITY OF EPSILON AURIGAE?
I.-S. Nha, S.J. Lee
28 September 1983
2406 PHOTOELECTRIC OBSERVATIONS OF 20 CVn
Y.W. Chun, Y.S. Lee, I.-S. Nha
30 September 1983
2407 MINIMUM TIMES OF THE ECLIPSING VARIABLES AH Cep AND IU Aur
Pavel Mayer, J. Tremko
4 October 1983
2408 PHOTOELECTRIC OBSERVATIONS OF THE FLARE STAR EV Lac IN 1980
G. Asteriadis, S. Avgoloupis, L.N. Mavridis, P. Varvoglis
6 October 1983
2409 HD 37824: A NEW VARIABLE STAR
Douglas S. Hall, G.W. Henry, H. Louth, T.R. Renner
10 October 1983
2410 ON THE PERIOD OF BW VULPECULAE
E. Szuszkiewicz, S. Ratajczyk
12 October 1983
2411 THE UNIQUE DOUBLE-MODE CEPHEID CO Aur
E. Antonello, L. Mantegazza
14 October 1983
2412 FLARE STARS IN TAURUS
A.S. Hojaev
14 October 1983
2413 BVRI PHOTOMETRY OF THE ECLIPSING BINARY QX Cas
Thomas J. Moffett, T.G. Barnes, III
17 October 1983
2414 THE ABSOLUTE MAGNITUDE OF AZ CANCRI
William P. Bidelman, D. Hoffleit
17 October 1983
2415 NEW DATA ABOUT THE APSIDAL MOTION IN THE SYSTEM OF RU MONOCEROTIS
D.Ya. Martynov
18 October 1983
2416 V LIGHT CURVE OF CC COMAE
G.V. Zhukov
18 October 1983
2417 SPECTROSCOPIC INVESTIGATION OF SZ Lyn AND SS Psc
G.A. Garbuzov
18 October 1983
2418 INACTIVE STATE OF MV LYRAE
I.L. Andronov, S.Yu. Shugarov
18 October 1983
2419 HD 34409 - A DELTA SCUTI VARIABLE
R.K. Srivastava, A.K. Arya
19 October 1983
2420 TWO NEW VARIABLE STARS IN THE FIELD OF NGC 6946
G. Romano, M. Perissinotto
19 October 1983
2421 NOTE OF THE SEMI-REGULAR VARIABLE TT Scl
P.S. The
24 October 1983
2422 FT LUPI: STUDY OF THE PERIOD AND LIGHT CURVE
S.L. Lipari, R.F. Sistero
24 October 1983
2423 V1057 CYGNI
Gunnar Welin
25 October 1983
2424 PHOTOELECTRIC MINIMA TIMES OF BX ANDROMEDAE
P. Rovithis, H. Rovithis-Livaniou
1 November 1983
2425 DETERMINATION OF CEPHEID DISTANCES BY MEANS OF WESENHEIT FUNCTION
Antoni Opolski
1 November 1983
2426 AD Leo FLARE MONITORING
Richard B. Herr, J.D. Frank
2 November 1983
2427 PHOTOELECTRIC HalphaW OBSERVATIONS OF R CMa
M.T. Edalati, B. Khalesse, N. Riazi
2 November 1983
2428 NEW OBSERVATIONS OF HZ Her
V.V. Hambarian, G.H. Broutian
CORRIGENDUM
8 November 1983
2429 PHOTOMETRIC STUDY OF IO ANDROMEDAE
I.L. Andronov
9 November 1983
2430 ON THE CYCLE LENGTH OF THE CATACLYSMIC VARIABLE T LEONIS
W. Wenzel
9 November 1983
2431 SUDDEN BRIGHTENING OF THE RECENTLY DISCOVERED Be STAR HR 7739
K. Pavlovski, H. Bozic, P. Harmanec, J. Horn, P. Koubsky
14 November 1983
2432 POLARIMETRY OF Be STARS IN THE OPEN CLUSTER NGC 6611
L.A.S. Reis, E. Janot-Pachecho
18 November 1983
2433 A NEW PROBABLE FLARE STAR
N. Sanduleak
23 November 1983
2434 ANOTHER SEMI-REGULAR VARIABLE IN CYGNUS
G. Auner, H. Hartl, R. Weinberger
25 November 1983
2435 ON THE VARIABILITY OF THE STAR SAO 072799
P.G. Niarchos
25 November 1983
2436 ON THE PERIOD OF BD Cir
Silvano F. Marton, A. Grieco
28 November 1983
2437 PHOTOELECTRIC OBSERVATIONS OF UV CETI
M.K. Tsvetkov, L.N. Mavridis, G.A. Asteriadis
29 November 1983
2438 PERIODIC LIGHT VARIABILITY OF PG1711+336
A.V. Mironov, V.G. Moshkalev, S.Yu. Shugarov
30 November 1983
2439 V417 AQUILAE: PHOTOELECTRIC OBSERVATIONS AND IMPROVED PERIOD
Danny R. Faulkner
2 December 1983
2440 V3876 Sgr, A MIRA STAR, NOT A NOVA
Emilia P. Belserene
5 December 1983
2441 PHOTOMETRIC VARIATIONS IN THE Ap STAR HD 215441
M. Corbin
5 December 1983
2442 PHOTOELECTRIC OBSERVATIONS OF R CrB
D. Bohme
9 December 1983
2443 REMARKS ON THREE VARIABLE STARS
Thomas Berthold
9 December 1983
2444 EPSILON AURIGAE
Eugenio E. Mendoza V.
13 December 1983
2445 POLARIMETRIC OBSERVATIONS OF Be STARS
L.A.S. Reis, E. Janot-Pachecho
14 December 1983
2446 THE HBeta EMISSION OF PU Vul
Liu Zongli, Hao Xiangliang
16 December 1983
2447 THE Be BINARY HR 2142: NO 0.13m BRIGHTNESS DECREASE IN JANUARY 1983
P. Harmanec, J. Horn, P. Koubsky, K. Pavlovski, H. Bozic, J. Ziznovsky,
J.R. Percy
16 December 1983
2448 A NOTE ON X TRIANGULI
P. Rovithis, H. Rovithis-Livaniou
20 December 1983
2449 X-RAY VARIABLE STARS IN THE PLEIADES
S. Sciortino, G. Micela, S. Serio, G.S. Vaiana, L. Golub,
F.R. Harnden, Jr., R. Rosner
20 December 1983
2450 FLARE LIKE ACTIVITY IN AR LACERTAE
R.K. Srivastava
23 December 1983
2451 PHOTOELECTRIC TIMES OF MINIMA OF ECLIPSING VARIABLES
P.G. Niarchos
23 December 1983
2452 ACTIVE AND INACTIVE STATES OF THE X-RAY BINARY 4U 2129+47 =
V1727 CYGNI
W. Wenzel
27 December 1983
2453 VARIABLE STAR TIMINGS FROM ARIZONA
Andrew P. Odell, F. Dorchak, K. Rogalski, S. Tapia, W.Z. Wisniewski,
D.H. Smith
27 December 1983
2454 HD 104901B AN F-TYPE SUPERGIANT ECLIPSING BINARY
Olin J. Eggen
28 December 1983
2455 Halpha VARIABILITY IN ALPHA LYRAE
P.S. Goraya, M. Singh
30 December 1983
2456 CO Aur - DOUBLE MODE CHARACTER CONFIRMED
B. Fuhrmann, R.H. Schult
2 January 1984
2457 NEW PHOTOELECTRIC MINIMA TIMES OF VW CEPHEI
P. Rovithis, H. Rovithis-Livaniou
4 January 1984
2458 A DATABASE FOR RS CVn BINARY STAR SYSTEMS
E. Nelson, M. Zeilik
6 January 1984
2459 THE LONG TIME BEHAVIOUR OF THE POLAR AM Her IN 1983
W. Gotz
10 January 1984
2460 ON THE DELTA SCUTI-LIKE VARIABILITY OF THE Ap STAR HD 10088
Tobias J. Kreidl
16 January 1984
2461 THE LIGHT CURVE OF FG Vul IN 1983
W. Gotz
18 January 1984
2462 ON THE SX Phe-TYPE STARS
M.S. Frolov, B.N. Irkaev
20 January 1984
2463 NEW DATA ON THE MOST RECENT MINIMUM OF THE X-RAY SOURCE KR Aur
Martha H. Liller, M.D. Popova
20 January 1984
2464 REVISED PHOTOMETRIC RESULTS OF SAO 072799
P.G. Niarchos
24 January 1984
2465 NARROW BAND PHOTOMETRY OF FG Vir
P. Lopez de Coca, R. Garrido, V. Costa, A. Rolland
27 January 1984
2466 WEAKENING OF HBeta EMISSION OF PU Vul
Liu Zongli, Hao Xiangliang
30 January 1984
2467 FURTHER OBSERVATIONS OF THE CENTRAL STAR IN THE PLANETARY NEBULA
NGC 2346
Brian F. Marino, H.O. Williams, W.S.G. Walker
1 February 1984
2468 THE ORBITAL PERIOD AND PHOTOGRAPHIC LIGHT CURVE OF THE ECLIPSING BINARY
V339 Per
E.H. Geyer, F. Gieseking
3 February 1984
2469 PERIOD CHANGE OF THE ECLIPSING BINARY IM AURIGAE
O. Gulmen, C. Sezer, N. Gudur
6 February 1984
2470 OUTBURST OF VY Aqr IN 1983
Masaaki Huruhata
6 February 1984
2471 POSSIBLE DISCOVERY OF REPEATING OSCILLATIONS IN THE BRIGHTNESS OF
BY DRACONIS ON TIMESCALES OF 1-3 HOURS
P.F. Chugainov
7 February 1984
2472 LACK OF DETECTION OF A 1.77 h -PERIODICITY IN THE CP STAR HD 32633
Tobias J. Kreidl
8 February 1984
2473 EPOCHS OF MINIMUM LIGHT, DISPLACED SECONDARY ECLIPSE OF SW LACERTAE
Danny R. Faulkner, E.E. Evans III, D.H. Grossoehme, E.J. Moyer, Jr.
8 February 1984
2474 NEW OBSERVATIONS OF CN ANDROMEDAE
E.J. Michaels, N.L. Markworth, J.B. Rafert
8 February 1984
2475 PERIODIC LIGHT CURVE VARIATIONS OF RT LACERTAE
S. Evren, C. Ibanoglu, Z. Tunca, O. Tumer
9 February 1984
2476 NEW VARIABLE STARS IN THE Gamma CYGNI REGION
Katya P. Tsvetkova
10 February 1984
2477 ON THE PERIOD OF BH CENTAURI
Tibor J. Herczeg
13 February 1984
2478 ON THE PERIODS OFF RZ COMAE AND V1073 CYGNI
Zeki Aslan, T.J. Herczeg
13 February 1984
2479 ON THE PERIOD OF THE W UMa SYSTEM Epsilon CrA
J. Manfroid, M. Lunel, J. Bergeat, P. Bouchet
15 February 1984
2480 THE PHASE BEHAVIOUR OF THE GENEVA Z AND DELTA(V1-G) PARAMETERS FOR
41 Tau, 56 Tau AND 49 Cnc
M. Muciek, J. Gertner, P. North, F.G. Rufener
17 February 1984
2481 ON THE NATURE OF THE CATACLYSMIC BINARY V2051 OPHIUCHI
W. Wenzel
22 February 1984
2482 A FLARE-LIKE EVENT ON THE LIGHT CURVE OF V351 Ori
G.U. Kovalchuk
24 February 1984
2483 FO And - PROBABLY A NEW MEMBER OF THE SU UMa SUB-GROUP OF DWARF NOVAE
L. Meinunger
29 February 1984
2484 PHOTOELECTRIC OBSERVATIONS OF THE FLARE STAR UV Cet IN OCTOBER 1983
I.V. Ilyin
1 March 1984
2485 THE ECLIPSE OF THE SYMBIOTIC ECLIPSING BINARY SYSTEM CI CYGNI IN 1982
T.S. Belyakina
5 March 1984
2486 THE DISCOVERY OF A W URSAE MAJORIS VARIABLE IN THE VISUAL BINARY SYSTEM
ADS 9019
R.L. Walker
6 March 1984
2487 PHOTOELECTRIC OBSERVATIONS OF THE EW-VARIABLE VZ Psc
E. Poretti
6 March 1984
2488 IMPROVED POSITIONS FOR 15 CATACLYSMIC VARIABLE STARS
Alan L. Kiplinger
7 March 1984
2489 NEW DOUBLE-LINED ECLIPSING BINARIES FOUND WITH RETICON, DIGICON, AND
CCD DETECTORS
Claud H. Lacy
7 March 1984
2490 IMPROVED OUTBURST LIGHT CURVES OF THE NOVAE EY Aql, BC Cas, MT Cen,
AND V745 Sco
H.W. Duerbeck
7 March 1984
2491 HIGHLY EXCITED EMISSION LINES IN BX Mon AND ZZ CMi
T. Iijima
13 March 1984
2492 A CLOSE ECLIPSING BINARY SYSTEM IN CYGNUS
S.Yu. Shugarov
16 March 1984
2493 SHELL EPISODE OF PLEIONE (BU Tau)
P.S. Goraya
19 March 1984
2494 BD +37d443: A NON-VARIABLE STAR
Andrea Cimatti, M. Lolli, G. Mengoli
21 March 1984
2495 ON THE PERIOD OF AG PEGASI
R. Luthardt
22 March 1984
2496 AN UV ACTIVE PHENOMENON OF EPSILON AURIGAE
Tosio Oki, I. Sekiya, K. Hirayama
23 March 1984
2497 NEW LIGHT ELEMENTS AND TIMES OF MINIMUM FOR AO CAMELOPARDALIS
Ernest E. Evans III, D.H. Grossoehme, E.J. Moyer, Jr.
23 March 1984
2498 SIX NEW VARIABLE STARS
H.H. Guetter, A.V. Hewitt
28 March 1984
2499 UBV OBSERVATIONS FOR ELEVEN KNOWN VARIABLE STARS
H.H. Guetter, A.V. Hewitt
28 March 1984
2500 PHOTOELECTRIC OBSERVATIONS OF CY AQUARII
A. Purgathofer, A. Schnell
28 March 1984
