COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 722 Konkoly Observatory Budapest 1972 October 9 PHOTOELECTRIC OBSERVATIONS OF V 1057 AND V 1329 Cyg Photoelectric observations of the variables V 1057 and V 1329 Cyg have been obtained with the 60 cm (f/5) telescope of Hamburg Observatory. The measured magnitude differences were transformed to the UBV-system. Photometric standards of the open cluster NGC 6910 were chosen. The observations are given in the Table. Star JD_hel V B-V U-B ---------------------------------------------------------- V 1057 Cyg 244 1187.4569 9.480 +1.217 +0.666 Comparison BD +43d3781 - 9.944 +1.337 +1.398 V 1329 Cyg=HBV475 0836.4137 12.797 +0.361 -0.726 0863.3513 12.922 +0.231 -0.639 1187.4110 13.066 +0.362 -0.609 1239.3763 13.128 +0.556 -0.619 Comparison BD +35d4290 - 10.336 +1.121 +0.834 ---------------------------------------------------------- H. BOSSEN Hamburger Sternwarte D2050 Hamburg 80 Gojenbergsweg 112