COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS Number 1674 Konkoly Observatory Budapest 1979 September 19 SEVEN NEW VARIABLE STARS IN THE FIELD OF M 101 This communication contains the results of a survey in the field of M 101 for the discovery of new variable stars at high galactic latitudes. The area of the sky covered by the plates taken with the 67/90/210 cm Schmidt telescope is of 6d x 6d centered on M 101. With a blinckmicroscope five pair of plates have been examined and seven new variable stars have been discovered ( GR 293- 294-295-296-297-298-299 ). The position ( 1950.0 ) of these stars and their characteristics are listed in Table I. TABLE I var. R.A. D. max min GR 1950 B 293 13h55m07s + 56d 40' 14.9 15.4 294 13 57 24 + 56 41 15.6 17.3 295 13 54 35 + 53 08 15.1 15.9 296 13 57 00 + 55 58 17.5 <18.2 297 13 58 03 + 55 12 15.4 15.9 298 14 01 45 + 56 36 16.1 16.9 299 14 10 00 + 53 43 16.6 17.7 Comments to Table I GR 293: Variations of small amplitude ( 0.5 in B and 0.6 in V ). The B - V color varies between + 0.2 to + 0.6. It is not possible to determine the type of variability. GR 294: This star is blue ( 0 < B - V.< - 0.3 ). Probably this object belong to BL Lac type. The amplitudes are 1.7 in B and 0.7 in V. GR 295: The light variations in B are between 15.1 and 15.9; in V between 15.2 and 15.9. The B - V color varies from + 0.1 to + 0.3. RR Lyrae type. GR 296: From the characteristics of light variations and color ( + 0.1 < B - V < + 0.5 ) the star is likely to be an U Gem star. GR 297: Variable with small amplitude ( 0.5 in B and 0.8 in V ). The. B - V color is high ( + 0.6 ; + 0.8 ). Type uncertain. GR 298: Amplitude 0.8 in B and 0.4 in V. This star is red ( + 0.7 < B - V < + 0.9 ). Type uncertain. GR 299: The amplitude is 1.1 in B and 0.7 in V ; the color is + 0.1 < B - V < +0.5. Possibly an RR Lyrae variable. [FIGURE 1] The B and V magnitudes of comparison stars have been determined with the SA 57. Since the material examined ( 27 B and 17 V plates ) is spread from 1970 to 1977 it is difficult to determine exactly the type and elements of variability. G. ROMANO Istituto di Astronomia dell'Universita di Padova