COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 537 Konkoly Observatory Budapest 1971 April 18 THE SUPERNOVA SERVICE OF THE ABASTUMANI ASTROPHYSICAL OBSERVATORY In accordance with the discussion which took place in Brighton at the General Assembly of the IAU I give here the data of observations connected with the Supernova Service of the Abastumani Astrophysical Observatory. We participate in the international Supernova Service since 1962 with our Schmidt Camera 36/44,4/62.5 cm, having a field of 42 square degrees. The magnitude limit is 15.2 on A-600 film with 5-minute exposure time. The coordinates of the centre of our areas are given in Table 1. In Table 2, separately for each area and year, the following data are given: Column a: Number of observational night " b: Net exposure time " c: Total number of observational night in 1962-70) " d: Net exposure time for each area obtained in 1962-70 " e: Same as d, but expressed in fractions of a day. Table 1. Centre of Areas -------------------------------------------- (1950) (1950) Area RA D Area RA D -------------------------------------------- 1 00h04m +47d35' 13 10h45m +15d00' 2 11 54 +48 00 14 11 20 +13 00 3 12 00 +50 00 15 11 25 +58 50 4 12 18 +15 00 16 11 38 +47 38 5 12 30 + 5 00 17 12 27 + 8 16 6 12 30 +15 00 18 12 30 - 5 00 7 12 30 +25 00 19 12 30 -10 00 8 14 52 +11 30 20 12 30 + 5 00 9 15 00 + 2 00 21 12 30 +10 00 10 18 16 +24 00 22 12 30 +15 00 Additional Centres 23 12 45 -10 00 11 8 54 + 3 08 24 12 45 - 5 00 12 10 45 +13 00 25 16 41 +36 50 -------------------------------------------- Table 2 -------------------------------------------------------------- Area 1962 1963 1964 1965 1966 1967 a b a b a b a b a b a b -------------------------------------------------------------- 1 17 4h50m 19 2h10m 27 3h35m 2 18 5 20 22 3 20 33 5 05 3 23 3h50m 12 4h00m 15 4h00m 4 22 5 10 18 2 40 33 4 15 5 29 4 50 11 3 20 14 3 40 4 0 40 6 23 3 50 12 4 10 14 3 50 7 8 21 4 50 23 2 55 34 5 05 9 23 3 50 20 6 10 8 2 40 10 16 3 40 24 2 35 36 6 05 11 12 1 0 10 12 2 00 2 0 40 17 1 25 13 14 1 0 10 12 2 00 2 0 10 15 16 17 18 2 0 10 19 2 0 10 20 3 0 15 21 3 0 30 4 0 40 3 0 15 4 0 20 22 3 0 15 2 0 10 23 1 0 10 11 1 50 24 1 0 10 14 2 20 25 -------------------------------------------------------------------- Table 2 (cont.) -------------------------------------------------------------------- 1968 1969 1970 Area a b a b a b c d e -------------------------------------------------------------------- 1 12 1h20m 75 11h55m 0d4965 2 44 5 00 31 3h30m 25 2h22m 173 24 37 1.0257 3 50 11 50 0.4931 4 41 4 40 30 3 45 24 2 12 168 22 42 0.9458 5 80 14 22 0.5986 6 49 11 50 0.4931 7 22 1 52 22 1 52 0.0778 8 24 2 50 8 0 40 110 16 20 0.6806 9 51 12 40 0.5278 10 29 4 15 105 16 35 0.6910 11 5 0 25 5 0 25 0.0174 12 8 0 40 6 0 30 46 4 55 0.2049 13 5 0 25 5 0 25 0.0174 14 8 0 40 1 0 50 4 0 20 28 3 25 0.1424 15 5 0 25 5 0 25 0.0174 16 7 0 35 7 0 35 0.0243 17 3 0 15 3 0 15 0.0104 18 5 0 25 7 0 35 0.0243 19 4 0 20 6 0 30 0.0208 20 6 0 30 9 0 45 0.0313 21 6 0 30 1 0 05 5 0 21 26 2 41 0.1118 22 6 0 30 6 0 28 17 1 23 0.0576 23 4 0 20 16 2 20 0.0972 24 5 0 25 20 2 55 0.1215 25 5 0 25 9 1 25 14 1 50 0.0764 -------------------------------------------------------------------- Abastumani Astrophysical Observatory E.K. KHARADZE