COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 280 Konkoly Observatory Budapest 1968 June 6 Veroffentlichungen der Remeis-Sternwarte Bamberg Astronomisches Institut der Universitat Erlangen-Nurnberg Bd, VII Nr. 69 CONTROL OF ELEMENTS OF SONNEBERG VARIABLES (VIII) The Harvard plate material (sky patrol) enables a control of the constancy of the elements from the early years of the century on. In the graphical representation only Harvard minima are used. Minima from SONNEBERG and BAMBERG are indicated by the middle line to O-C=0.^d000. The accuracy of the observations is shown by the parallel lines. S 4973=CVS 2049=CoD -44d8789(9.^m7)=HD 118695(A5)=BV 845 The elements published in IBVS 256 (1968) are to be corrected due to an error in the (O-C)-values. For E=0 read O-C=-0.046. Min=JD 2427987,305+0.^d5371945*E Minima Minima Minima Minima 243... 242... 6834,479 0994,659 3822,319 9745,534 6489,348 0984,723 3453,287++ 9727,337 6479,422 0626,662 3439,321 9651,575 6469,442 0343,535 2738,224 9443,336 6436,404++ 241... 2728,284(1/2) 9384,342 6067,375 8855,511 2348,317 9041,297 5685,461 8497,226+ 2319,260 8716,319 5386,223+ 8473,589 1918,508 8668,488 4357,505++ 8422,573 1676,224 8575,550 3536,642++ 7977,796 1669,223++ 8363,323 3516,789++ 7971,835 1655,301++ 8341,283 2516,500++ 7730,614 1619,316 8213,471 2401,817 7256,827++ 1575,213 8199,497++ 1758,576 7075,521(1/2) 0849,492 7590,369 1751,574 7035,576 0418,412(1/2) 7524,517 1723,626++ 6958,717++ 0112,433+ 7236,332 1362,617+ 6936,713+ 0088,536(1/2) 7221,247 1093,507++ 6668,589 0055,514 7181,502 1023,647+ 6625,636 0004,515 6868,345 1022,591++ 6278,637 5222,529 [FIGURE 1] S 5018=CSV 2442=BV 753 1900: 15^h39^m37^s -66d25,'8 Min=JD 2428664,350+0.^d614605*E (IBVS 184. 1967) Minima Minima Minima Minima 243.. 0900,319 8289,417++ 3940,803 3033,577 0158,437 8276,553+ 3197,733+ 2359,348 0157,511 7978,494(1/2) 3172,693 2058,238 242... 7903,494 2100,654 2052,322(1/2) 9897,252 7891,417 0688,623(1/2) 2000,413++ 9716,558 7545,481 0338,576 1992,543 9421,502+ 7295,259+ 241... 1680,225 9322,594 7188,418(1/2) 9589,639 1647,322 9130,238 6938,228(1/2) 8506,578 1627,337++ 9104,364 6812,531 8414,812 1620,284 9048,477 6543,285 8368,440++ 1614,409(1/2) 9016,514 6490,463 8069,754 1494,593++ 8968,586 6181,283+ 7992,833(1/2) 1251,474(1/2) 8771,242 6125,352 7405,647 1241,382+ 8699,422 5789,276 6951,704+ 1167,602 8691,412 5446,285(1/2) 6589,713 1143,578(1/2) 8640,411 4670,627 6264,669(1/2) 0859,373 8337,310+ 4327,629 5885,629(1/2) [FIGURE 2] S 5120=CSV 5295=CAP -70d2812(7.^m4)=HD 199055 (F_2)=BV 482 The true period is the half of that published in IBVS 184 (1967): Min=JD 2428667,600+0.^d949875*E The Harvard plate material reveals the secondary minimum. Minima Minima Minima Minima 243... 1705,371 242... 1814,666(1/2) 3203,248 1344,300 9756,622(1/2) 0664,853 3180,452 1323,481 9739,506(1/2) 0425,575 2765,348 1282,577 ,505(1/2) 0043,618 2706,472 1265,537 9611,283(1/2) 241... 2648,560 1228,476 9466,477 9942,900 2326,536 1150,592++ 9428,451++ 9575,817(1/2) 2305,604 0994,340 9221,343 9567,753 2084,307 0526,464 9204,291 9305,598 2065,358 0448,617++ 9165,370 9224,800 2006,919 0263,370 9127,291 9205,770 1978,347(1/2) 0234,436 8861,339 8604,566 1950,385 0128,499 9785,397 8486,767 1947,552 ,466 7987,331 7727,839 1908,572 0109,545 4051,673 7562,542 1801,296 0070,565++ 3341,593 7328,880++ 1772,260(1/2) 1862,609 7067,670 7006,852+ 5927,767 [FIGURE 3] June 3, 1968 W. STROHMEIER, E. BAUERNFEIND Bamberg, Remeis-Observatory