COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 271 Konkoly Observatory Budapest 1968 April 25 Veroffentlichungen der Remeis-Sternwarte Bamberg Astronomisches Institut der Universitat Erlangen-Nurnberg Band VII, Nr. 68 ELEMENTS OF SONNEBERG VARIABLES (VII) FR Lup=S 7618=CAP -53d6056(9.^m6)=BV 743 Min = JD 2428744,350+1.^d264033*E Minima E O-C 2428722,245(S) -17,5 +0,016 8744,295(S) 0 -0,055 2434480,622(S) +4538 +0,090 4485,576(S) 4542 -0,012 4509,570(S) 4561 -0,034 8475,501 7698,5 -0,007 ,553 7698,5 +0,045 8501,438 7719 +0,017 ,482 7719 +0,061 8553,285(1/2) 7760 +0,039 ,329(1/2) 7760 +0,083 8584,246 7784,5 +0,031 8884,407++ 8022 -0,016 8915,300(1/2) 8046,5 -0,092 ,349 8046,5 -0,043 9210,488 8280 -0,055 9236,458+ 8300,5 +0,002 9293,253(1/2) 8345,5 -0,084 ,297+ 8345,5 -0,040 9314,216 8362 +0,022 ,260 8362 +0,066 9614,362 8599,5 -0,040 ,408+ 8599,5 +0,006 Ampl. 0.^m65, with deep secondary minimum similar to primary minimum, EW or EB C, HOFFMEISTER, AN 287, 59, 1963: 11,^m5 - 12.^m, EA (S)=Sonneberg, H. GESSNER [FIGURE 1] By the help of the Harvard plate material, which was in a friendly manner at our disposal, we were able to control the period back to 1901. Calculations were made with period, which was derived from the very close lying minima up to 1966. The last figures (5th and 6th place after comma) in the period were obtained using the Sonneberg minima from the years 1937 and 1953. This is about half of the available photographic material. In the graphical representation you find the span of inaccuracy by an estimate of the minima, indicated with +-5% of the period by two thin lines, parallel to the zero direction. Minima found in Bamberg and Sonneberg are not entered, but only the Harvard minima (H. Bauernfeind). Minima E O-C 2433055,284 +3410,5 -0,050 2977,534++ 3349 -0,063 2713,231(1/2) 3140 -0,183 2035,319 2603,5 +0,059 ,287 2603,5 +0,027 1921,422(1/2) 2513,5 -0,075 1636,432 2288 -0,026 ,366 2288 -0,092 1608,464(1/2) 2266 -0,185 1134,559 1891 -0,077 ,591 1891 -0,045 0575,235 1448,5 -0,067 0518,490 1403,5 +0,070 0197,289 1149,5 -0,067 0088,616 1063,5 -0,033 2429871,255++ +891,5 +0,020 9783,344 822 -0,041 9731,362 781 -0,198 9679,506(1/2) 740 -0,228 9436,409 547,5 +0,001 9348,618 478 +0,060 9322,594++ 457,5 -0,051 ,497 457,5 -0,148 9079,367 +265 +0,048 8565,544 -141,5 +0,055 8276,553(1/2) 370 -0,105 7650,260 865,5 -0,069 7593,411++ 910,5 -0,037 7267,295 1168,5 -0,032 6915,223 1447 -0,071 6806,529 1533 -0,058 6563,233 1725,5 -0,028 6454,423 1811,5 -0,131 2426211,233++ 2004 +0,005 6159,338 2045 -0,064 6102,483+ 2090 -0,038 6097,306++ 2094 -0,159 5745,348++ 2372,5 -0,084 5419,280++ 2630,5 -0,031 3964,634 3781,5 -0,407 3959,490 3785 -0,395 3255,531++ 4342 -0,388 3234,650 4358,5 -0,412 3229,597++ 4362,5 -0,409 3172,693++ 4407,5 -0,431 2546,502 4903 -0,294 1790,536+ 5501 -0,368 1751,574(1/2) 5532 -0,145 1686,789 5583 -0,465 1360,708 5841 -0,425 0651,621++ 6402 -0,390 0594,846(1/2) 6447 -0,283 0392,528(1/2) 6607 -0,356 0349,601 6641 -0,306 0325,624++ 6660 -0,266 0304,600(1/2) 6676,5 -0,433 2419895,755 7000 -0,364 9605,580 7229,5 -0,443 9212,507 7540,5 -0,392 8508,572 8097,5 -0,271 8456,663 8138,5 -0,354 8431,373 8158,5 -0,364 8404,823+ 8179,5 -0,369 8394,707(1/2) 8187,5 -0,373 7405,647++ 8970 -0,327 7371,699(1/2) 8997 -0,146 7069,577(1/2) 9236 -0,164 6608,627 9600,5 -0,374 6587,725++ 9617 -0,420 6323,588 9826 -0,374 5945,591(1/2) 10125 -0,425 5940,506 10129 -0,454 5847,715(1/2) 10202,5 -0,338 5600,579(1/2) 10397,5 -0,356 5474,664+ -10497,5 -0,500 Remeis-Observatory Bamberg, 1968 April 18 W. STROHMEIER - H. BAUERNFEIND