COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 765 Konkoly Observatory Budapest 1973 February 7 Veroffentlichungen der Remeis-Sternwarte Bamberg Astronomisches Institut der Universitat Erlangen-Nurnberg Band X, Nr. 105 NEW FAINT SOUTHERN VARIABLE STARS On sky patrol plates, taken with the 10 inch Metcalf at the Boyden Observatory Bloemfontein, South Africa, further 30 stars were found to be variable. (22 new stars and 8 stars listed already in the Catalogue of Suspected Variable Stars, CSV). The brightness of these stars are obtained from the Harvard-Groningen- Atlas, Selected Areas (edition 1965 by A. Brun and H. Vehrenberg). Finder-Charts are 1d in declination, south is up. ------------------------------------------------------------------------------- BV-Nr. RA Decl. Max Ampl. Type Remarks 1900.0 Brightness pg pg ------------------------------------------------------------------------------- BV 1521 Hyi 03h23m30s -72d27.9' 13.8m 0.6m RR 1 =CSV 306= HV 11932 BV 1522 Men 04 05 02 -78 10.2 13.0 1.1 EA 2 BV 1523 Men 04 15 58 -79 41.9 13.5 0.6 L 3 BV 1524 Men 04 36 08 -74 41.4 13.7 0.5 EA 4 BV 1525 Men 04 46 27 -70 25.8 12.5 1.0 - - =CSV 447= HV 8036 BV 1526 Men = CAP -70d0325(9.7m) 9.7 0.4 EA 5 BV 1527 Men 05 42 32 -79 45.2 13.9 0.6 L 6 BV 1528 Men 06 21 37 -79 38.4 13.6 0.5 EA 7 BV 1529 Vol 07 14 24 -71 36.9 13.1 0.5 EB? 8 BV 1530 Men 07 18 07 -79 34.6 13.2 0.7 EA 9 BV 1531 Men 07 38 50 -76 37.9 13.1 0.6 L 10 BV 1532 Vol 07 49 42 -71 36.0 12.2 3.3 ? - =CSV 1170= HP 8098= 108.1933 BV 1533 Cha 08 09 03 -75 53.8 13.4 0.8 RR 11 BV 1534 Vol 08 13 39 -72 11.8 14.1 0.6 M 12 BV 1535 Cha 08 20 36 -75 27.3 13.2 0.9 L 13 BV 1536 Vol 08 44 21 -70 45.5 15.0 0.5 - - = CSV 1370= HV 8162 BV 1537 Cha 08 54 31 -75 37.6 14.1 0.7 RR 14 BV 1538 Cha 10 04 50 -77 39.2 13.9 0.7 L 15 BV 1539 Cha 10 16 17 -79 25.2 13.5 0.6 L 16 BV 1540 Cha 10 31 27 -79 19.7 13.5 0.5 EB 17 = CSV 6790= S 6307 BV 1541 Cha 103551 -78 53.5 14.5 0.5 L 18 = CSV 6793= S 6310 BV 1542 Car 10 36 53 -71 27.4 12.9 0.9 EA 19 BV 1543 Car 10 42 25 -71 32.3 12.5 2.5 N 20 BV 1544 Car 11 04 00 -72 41.4 13.0 1.0 ? 21 = CSV 6819= S 6338 BV 1545 Mus 11 15 54 -72 52.0 14.0 0.9 L 22 = CSV 1729= HV 8356= 135,1934 BV 1546 Mus 11 29 34 -69 59.5 14.2 0.6 L 23 BV 1547 Mus 11 56 46 -71 41.5 13.8 0.7 EA 24 BV 1548 Cha 12 36 58 -77 13.6 14.2 0.4 L 25 BV 1549 Mus 13 54 25 -64 20.2 11.3 0.2 L 26 BV 1550 TrA = CAP -64d3218 9.9 0.4 EA 27 ------------------------------------------------------------------------------- Remarks: 1 few good maxima 2 few minima, not enough for a period 3 many maxima and minima, irregular type 4 many maxima, few minima, but not enough for a period 5 many maxima, few minima, not enough for a period 6 irregular type 7 many maxima, few minima, not enough for a period 8 many maxima and minima, short period ? 9 many maxima, few minima, not enough for a period 10 many maxima. and minima, irregular type 11 few good maxima 12 probably an M-type variable 13 many maxima and minima, irregular type 14 few good maxima 15 many maxima and minima, irregular type 16 many maxima and minima, rather difficult 17 many maxima, short period 18 many maxima, but more minima, irregular type 19 many maxima, few minima, eclipsing binary, P~2^d 20 probably a Nova. The results are given below Date Julian Date Magnitude --------------------------------------------- 1969 March 23 2440304.413 15.2 1970 Febr. 7 0625.514 12.4 Febr. 9 0627.483 12.2 Febr. 11 0629.503 12.4 Febr. 12 0630.094 12.6 Febr. 15 0633.096 13.2 March 1 0647.420 13.9 March 3 0649.034 14.2 March 29 0675.341 15.2 March 3 0676.346 15.2 April 3 0680.322 15.2 --------------------------------------------- No values between March 23, 1969 and Febr. 7, 1970. 21 only one bright maximum, long period 22 many maxima and minima, irregular type 23 many maxima and minima, rather difficult 24 few minima, not enough for a period. 25 irregular type 26 many minima, but more maxima 27 few minima, not enough for a period, eclipsing binary Bamberg, January 1973 R. KNIGGE [FIGURE 1] [FIGURE 2] [FIGURE 3] [FIGURE 4] [FIGURE 5]