COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS Number 1343 Konkoly Observatory Budapest 1977 September 26 NOTES ON SIX LONG-PERIOD VARIABLE STARS On 509 Bamberg Sky Survey plates, the poorly known stars DF, DG, DH, DL Pav, RY and RZ Pic were investigated using the Argelander-step-method. Comparison stars were determined by the Selected Areas no. 169, 196, 197 (1). Table I gives the maxima and minima, found by the Pogson method. Table I Star Phi Max./Min.(J.D.) Mag.(pg) N RY Pic M 2438378d 11.4m 19 M 40565: 10.6 24 RZ Pic M 38420 10.1 10 M 38731 10.0 14 DF Pav m 40386: 15.0: 8 m 40768: 14.8 7 DG Pav M 38940 11.9 15 M 40005: 12.1 5 DH Pav M 38604 11.7 32 M 39331 11.7 20 M 40068: 11.8 6 DL Pav M 39374: 11.5 20 M 40082 13.2 12 N= Number of used plates, M=Maximum, m=Minimum. RY Pic = HV 8090 varies in the limits 10.6m- (14.1mpg. From the whole material, a period of 219d may be possible. RZ Pic = S 4864. Together with the GCVS epoch (2), we found Max=2425663d + 311d E. Variable in the limits 10.0m- 14.0mpg. DF Pav varies from 11.9m to 14.8mpg. The period is in the order of 374d, the lightcurve is strongly variable. The star belongs to the SRa-type. DG Pav is variable from 11.9m to less than 14.1mpg. DH Pav. From the table we found Max=2438604d + 244d E. Variable in the limits 11.7m - (14.4mpg. DL Pav varies from 11.0m to less than 14.7mpg. The period is in the order of 174d. U. HOPP and M. KIEHL Dr. Remeis Observatory, Bamberg References: (1) Brun, Vehrenberg - Atlas of Havard-Groningen Selected Areas Dusseldorf 1965 (2) Kukarkin et al. - General Catalogue of Variable Stars, Moscow 1969