COMMISSION 27 OF THE I.A.U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 145 Konkoly Observatory Budapest 22 July 1966 NOTE ON V796 CYG = S4782 = BV 345 The period of V796 Cyg, given in the First Supplement to the Second Edition of the GCVS, Moscow 1960, page 37, could be improved by considering estimated minima on Bamberg sky patrol plates. The elements of V796 Cyg are: Min = JD 243 5691.417 + 0.740438d E Minima E O - C JD 242 6620.317 -12250 +0.006d .359 -12250 +0.048 6810.580 -11994 -0.024 7327.388 -11296 -0.041 7330.343 -11292 -0.048 7333.356 -11287 +0.003 8020.522 -10359 +0.043 8779.435 - 9334 +0.007 9050.467 - 8968 +0.038 243 6789.439 - 1482 -0.048 6841.394 - 1552 -0.023 Bamberg Observatory, July 14, 1966 W. STROHMEIER Y CYGNI (Continuation of IBVS No 61) For improving the period of apsidal rotation the observation of this star is requested. Therefore I give in the table below the moments of "odd"-minima (Princeton Contr. 12, 1931) for 1966. J.D.M.A.T.G. U.T. 243 9328.36 1966 July 21d 23.9h 31.35 24 23.8 34.35 27 23.7 37.35 30 23.6 40.34 Aug. 2 23.5 43.34 5 23.4 46.34 8 23.3 49.33 11 23.3 52.33 14 23.2 55.32 17 23.1 58.32 20 23.0 61.32 23 22.9 64.32 26 22.8 67.31 29 22.7 70.31 Sep. 1 22.6 73.30 4 22.6 76.30 7 22.5 79.30 10 22.4 82.29 13 22.3 85.29 16 22.2 88.28 19 22.1 91.28 22 22.0 94.28 25 21.9 97.27 28 21.9 9400.27 Oct. 1 21.8 03.27 4 21.7 06.26 7 21.6 09.26 10 21.5 12.25 13 21.4 15.25 16 21.3 18.25 19 21.2 21.24 22 21.2 24.24 25 21.1 27.24 28 21.0 30.23 31 20.9 33.23 Nov. 3 20.8 36.23 6 20.7 Astrophysikalisches Observatorium Potsdam, June 10, 1966 H. SCHNELLER NOUVELLE ETOILE VARIABLE En etudiant l'etoile variable Br 51, signalee par M. BRUN ("37 etoiles variables noumelles dans Lacerta" - Journal des Observateurs vol. 47, 46, 1964) j'ai trouve une etoile susceptible d'etre une etoile variable nouvelle. Sa position est 1900,0 22. 26. 07 + 48deg39,2 1950,0 22. 28. 11 + 48deg54,6 Les deux cartes sont des agrandissements a l'echelle de 1deg = 12 cm de plaques Ferrania LS 61 exposees a - le 6. 7. 1964 de 22h41 a 23h11 (TU) b - le 8. 9. 1964 de 20h50 a 21h50 (TU) a l'aide d'une chambre photographique equipee d'un objectif Berthiot- Olor, f = 500 mm, f/D = 6. L'etoile suspecte ne figure pas dans le Catalogue Photographique du Ciel, section de Catania. Elle figure sur les planches 590 et 599 de l'Atlas de Palomar. [FIGURE 1] 1 = variable BR 51 (variation confirmee) 2 = BD +48deg3746 = AGK_2 +48deg1916 E. SCHWEITZER 67-Strasbourg 1, rue Beethoven