COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS Number 3073 Konkoly Observatory Budapest 25 August 1987 HU ISSN 0374-0676 NEW H-alpha - EMISSION STARS IN THE REGIONS NGC 7000, IC 5068 AND IC 5070 During June and September 1979 we observed the NGC 7000, IC5068 and IC5070 regions in order to search for new H-alpha emission stars. In these regions about 300 emission stars have been found (Merill and Burwell, 1949, 1950; Herbig 1958; Welin 1973; Tsvetkov 1975, Tsvetkov, and Tsvetkova 1978). When observing these regions, we had two intentions: 1. To find new H-alpha - emission stars. 2. To find variation of the H-alpha intensity on already known emission stars. In the present paper the results of 33 new H-alpha - emission stars are presented. The observations have been carried out with the 40" Schmidt telescope of the Byurakan Astrophysical Observatory. The spectral plates have been obtained by the 4-deg objective prism ( 1100 A/mm at H-alpha ) on Kodak 103 aE and II aF emulsions through an RG 610 filter. The average limiting magnitude was about 18.5m (pg). 33 new H-alpha emission stars were found which have not been included in the references at the end of this note. In Table I the results for these stars are presented. In the columns of Table I the following data are presented respectively: the serial number of the star, coordinates(1950.0), magnitude at minimum and intensity of H-alpha - emission. [FIGURE 1] Table I N RA (1950.0) D m(pg) I N RA (1950.0) d m(pg) I Halpha Halpha 1 20h32m01s 43 27.3 18.1 m 18 20h49m26s 42 37.1 17.5 m 2 32 13 45 31.0 16.6 s 19 49 33 44 01.9 17.9 m 3 32 29 44 36.5 16.9 s 20 49 51 42 01.1 16.0 s 4 36 37 43 25.1 18.5 m 21 49 52 44 30.9 18.5 m 5 36 46 42 18.3 18.0 s 22 51 00 42 27.9 18.5 m 6 36 59 41 57.0 16.5 ss 23 20 52 44 44 28.5 18.5 m 7 41 01 44 50.6 17.2 m 24 53 51 42 02.3 16.5 w 8 41 16 44 16.6 17.6 s 25 55 30 44 53.8 15.8 w 9 43 08 42 59.4 17.0 m 26 55 53 44 38.3 17.7 m 10 46 17 42 49.4 17.8 m 27 56 02 43 53.4 16.0 w 11 47 17 44 55.7 18.7 s 28 56 15 44 35.2 18.5 s 12 48 07 44 56.7 18.0 ss 29 56 32 44 38.3 17.6 s 13 48 32 43 46.6 18.3 m 30 56 40 44 41.3 17.5 m 14 48 44 43 29.6 17.0 m 31 57 55 42 12.0 16.2 m 15 49 10 41 58.3 18.5 m 32 58 42 44 11.6 17.1 m 16 49 11 44 09.7 17.4 s 33 58 43 44 09.6 18.2 w 17 49 18 44 33.4 17.4 s The identification charts for the 33 new H-alpha - emission stars are given in Figure 1. N.D. MELIKIAN Armenian SSR, USSR Byurakan Astrophysical Observatory V.S. SHEVCHENKO S.Ju. MELNIKOV Taskent Astronomical Institute, USSR References: Herbig, G. 1958, Ap. J., 128, 259, [BIBCODE 1958ApJ...128..259H ] Merrill, P.W., Burwell C.G. 1949, Ap.J., 110, 387, [BIBCODE 1949ApJ...110..387M ] Merrill, P.W., Burwell C.G. 1950, Ap.J., 112, 72, [BIBCODE 1950ApJ...112...72M ] Tsvetkov, M.K. 1975, Astrofizika, 11, 579, [BIBCODE 1975Afz....11..579T ] Tsvetkov, M.K. Tvestkova K.P. 1978, IBVS, No. 1447. Welin, G. 1973, Astron. Astrophys. Suppl. 9. 183 [BIBCODE 1973A&AS....9..183W ]