COMMISSION 27 OF THE I.A.U. INFORMATION BULLETIN ON VARIABLE STARS Number 1203 Konkoly Observatory Budapest 1976 November 15 AN IMPROVED PERIOD OF V 387 Cyg V 387 Cyg = 175.1935 was discovered by O. Morgenroth (Astr. Nachr. Bd. 255, Nr. 6119, 1935), who classified it as an eclipsing binary (11.5m-13.0m ph). V. P. Tsesevich (Isv. astr. obs. Odessa, Tom 4.1) studied the star and found that the star is of Algol-type with the elements: (A) Min.(hel.) = JD 2427985.461+0.640594d E (EA). I examined the star on Sky-patrol-plates of the Bruno-H.- Burgel Observatory Hartha (JD 2438325-42775) and visually. So I found the following minima: Min (hel.) Epoch O-C_A O-C_B JD 244... 1988.271 ph + 21859 +0d066 +0d013 2298.317 ph 22343 +0.064 +0.011 2631.4177 v 22863 +0.0561 +0.002 2638.4628 v 22874 +0.0546 +-0.000 Using the minima published before (Tsesevich, V.P., Isv. astr. Obs. Odessa, Tom 4.1 and Peter, H., BBSAG Bull. 29). I found improved elements: (B) Min.(hel.) = JD 2427985.461+0.6405964d E (EA). Further particulars will be published in "Mitteilungen der Bruno-H.-Burgel-Sternwarte Hartha". THOMAS BERTHOLD DDR 7302 Hartha Bruno-H.-Burgel-Sternwarte Correction to I.B.V.S. No. 1163 The minimum of TX Her is erroneously given. It should be read : Min.hel. 2442561.498; O-C (I)= -0.005d; O-C (II)= +0.004d E. POHL A. KIZILIRMAK Nurnberg Observatory Ege University Observatory