COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS Number 2561 Konkoly Observatory Budapest 26 July 1984 HU ISSN 0374-0676 AUTOMATIC PHOTOELECTRIC TELESCOPE: FIRST QUARTER 1984 OBSERVATIONS The Automatic Photoelectric Telescope at Fairborn Observatory West in Phoenix, Arizona began its second quarter of operation on the night of 1 January 1984. Photometry from this date through the end of March 1984 included a program of 71 groups of stars, with each group consisting of a variable, a comparison star, a check star, and a sky position. During this time 3017 group observations were made. Since each group observation consisted of a sequence of 33 different 10-second observations, there was a total of 99561 observations. The individual differential magnitudes have been sent to the I.A.U. Commission 27 Archive for Unpublished Observations of Variable Stars, where they are available (Breger, 1982) as File No. 136, which contains four parts. Part I is a summary of the contents of the file. Part II is a summary listing of the names of the 71 groups observed. Part III is a listing of detailed information on the 71 groups of stars observed. Part IV contains the actual observational results. Data on specific variables can be requested, if the entire contents of the file are not needed. Table I lists the 71 groups in the program. The first column is the group number. The second is the group name. And the last is the number of pages of reduced data in File No. 136. No data were obtained for six of the groups, which were below the horizon. The sequence of UBV observations within a group, the extinction and transformation coefficients used in the reduction, and other particulars on the acquisition, reduction, and presentation of the data have been given by Boyd, Genet, and Hall (1984). An automatic photoelectric telescope produces a large amount of data, all of which we do not expect to utilize fully. Therefore we plan to deposit our data from the automatic telescope in the I.A.U. Commission 27 Archive expeditiously and invite other investigators to make good use of Table I The 71 Groups on the First-Quarter 1984 Observing Program no. name obsv. pages no. name obsv. pages 1 lambda And 20 1 36 II Peg 0 0 2 39 AY Cet 13 1 37 TZ Tri 28 1 3 sigma Gem 91 3 38 53 xi UMa (B) 122 4 4 V711 Tau 45 2 39 BH CVn 99 3 5 27 & 28 LMi 125 4 40 HD 26337 35 1 6 HR 9024 25 1 41 HD 8357 19 1 7 HR 7428 8 1 42 HR 454 47 2 8 IM Peg 7 1 43 HR 1362 45 2 9 HR 7275 13 1 44 HD 37824 57 2 10 HR 6469 72 2 45 HR 3337 85 3 11 DK Dra 43 2 46 HD 116204 71 2 12 R Sct 0 0 47 theta CrB 83 3 13 12 BM Cam 47 2 48 iota Peg 5 1 14 33 Psc 4 1 49 HD 217188 0 0 15 5 Cet 3 1 50 HD 219989 15 1 16 UX Ari 51 2 51 beta Lyr 19 2 17 59 d Ser 8 1 52 V367 Cyg 0 0 18 FS Com 98 3 53 zeta Aur 42 2 19 HK Lac 6 1 54 31 Cyg 0 0 20 AR Lac 2 1 55 32 Cyg 0 0 21 29 Dra 9 1 56 HD 25893 61 2 22 54 Cam 90 3 57 HD 28591 65 2 23 51 & 52 Aur 76 3 58 HD 136901 47 2 24 CE Tau 52 2 59 HD 9312 36 1 25 TV Psc 16 1 60 HR 503 35 1 26 RZ Ari 43 2 61 3 Cam 80 3 27 rho Per 69 2 62 HR 1970 41 2 28 IN Hya 45 2 63 1 Gem 57 2 29 epsilon Aur 63 2 64 HR 4430 100 3 30 zeta And 30 1 65 HR 6950 24 1 31 13 Cet 9 1 66 HR 7260 16 1 32 TZ CrB 30 1 67 81 Psc 16 1 33 omicron Dra 17 1 68 11 Hya 85 3 34 V350 Lac 3 1 69 31 Com 103 3 35 93 Leo 132 4 70 37 Com 88 3 71 HR 1023 26 1 it in their own research. We ask only that the source of the data be referenced properly in any paper which results. LOUIS J. BOYD Fairborn Observatory West 629 North 30th Street Phoenix, Arizona 85008 RUSSELL M. GENET Fairborn Observatory East 1247 Folk Road Fairborn, Ohio 45324 DOUGLAS S. HALL Dyer Observatory Vanderbilt University Nashville, Tennessee 37235 References: Breger, M. 1982, I.B.V.S. No. 2246. Boyd, L. J., Genet, R. M., and Hall, D. S. 1984, I.B.V.S. No. 2511. [DATAFILE 1]