COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 38 Konkoly Observatory Budapest 11 November 1963 THE ELEMENTS OF THE VARIABLE STAR 390.1933 (CEPHEI) The star is No 5411 in the Catalogue of Stars Suspected of Variability (Moscow 1951)= BD +77deg813 (9m.5), Mira type, m_ph=12m.5 -15m.5. According to maxima obtained on Bamberg plates we have the elements: Max = JD 242 6782 + 331d. E Individual maxima: E O-C 242 6782 +- 10 (M) 0 0 7105 +- 15 (M) 1 - 8 9080 7 -19 9465: 8 +35: 243 1001 (G) 10 + 9 6380 29 - 1 (M) = O. Morgenroth, AN 250, 1933 (G) = E. Geyer, Veroff. Bamberg V, 9, 1960 THREE "POORLY KNOWN" VARIABLE STARS AA UMa The elements in the GCVS (Moscow 1958) are: Min = JD 243 4087.293 + 3d.0703 (?). E, type EA The corrected elements based on Bamberg patrol plates are: Min = JD 242 5687.345 + 0d.763 839. E, type EB Primary Minima Secondary Minima JD E O-C JD E O-C 242 5687.344 0 -0.001 242 6772.405 1420 +0.409 6434.385 978 +0.006 6798.381 1454 +0.413 6770.455 1418 -0.013 7183.342 1958 -0.400 6796.401 1452 -0.038 7516.369 2394 +0.393 7126.424 1884 +0.006 7901.372 2898 +0.422 7155.433 1922 -0.010 8609.421 3825 +0.392 7158.482 1926 -0.017 8991.381 4325 +0.433 7449.529 2307 +0.008 9317.500 4752 +0.393 7478.516 2345 -0.031 243 6614.460 14305 +0.398 8213.385 3307 +0.025 6663.372 14369 +0.425 8219.481 3315 +0.010 7022.387 14839 +0.436 8957.362 4281 +0.022 243 4087.297* 10997 +0.015 4452.396 11475 -0.001 * = V. P. Tsessewitch, AC Kasan 5183.384* 12432 -0.007 170,1956 5186.458* 12436 +0.011 6612.492 14303 -0.042 The estimated light-curve is 6658.343 14363 -0.021 shown in the figure EH Peg The elements in the GCVS (Moscow 1958) are: Min = JD 243 1326.660 + 2d.367. E, type EA. The corrected elements based on Bamberg patrol plates are: Min = JD 242 5883.360 + 2d.388 966. E, type EB. Primary Minima Secondary Minima JD E O-C JD E O-C 242 5883.374 0 +0.014 242 6632.328 313 +1.222 7689.381 756 -0.037 243 1317.19* 2274 +1.32 8408.494 1057 -0.003 1324.33* 2277 +1.29 9108.475 1350 +0.011 1329.08* 2279 +1.27 243 7233.353 4751 +0.013 1331.31* 2280 +1.11 7964.338 5057 -0.024 1343.25* 2285 +1.10 385 5057 +0.024 7559.380 4887 +1.143 .431 4887 +1.194 * = V. P. Tsessewitch, Odessa Isv. 7957.334 5054 +1.140 IV, 1954 The estimated light-curve is shown in the figure. [FIGURE 1] RV Oct = 29.1916 = HV 3384 From our South-African-plate material the following elements have been obtained: Max. = 243 8196.190 + 0d.61798. E Individual maxima E O-C 243 8196.221 0 +0.031 8199.312 5 +0.032 8202.350 10 -0.020 8204.200 13 -0.024 8205.442 15 -0.018 8294.442 159 -0.007 8317.324 196 +0.010 The star is an RR Lyrae variable of type a. Photographic range: 11m.7 - 12m.2. W. STROHMEIER and H. OTT Remeis Observatory Bamberg