Four-color and H-beta photometry of open clusters. XII - NGC 6910 and NGC 6913

Abstract

view Abstract Citations (36) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Four-color and Hbeta photometry of open clusters. XII. NGC 6910 and NGC 6913. Crawford, D. L. ; Barnes, J. V. ; Hill, G. Abstract Intermediate-band photoelectric photometry was obtained for 23 stars in NOC 6910 and 25 in NGC 6913 (M29). By analysis of the data, we conclude that 16 stars are members of the cluster NGC 6910 and 17 of NGC 6913. The average reddening of cluster members is high, about E (b -y )=0.75 mag for both. By using a calibration of P vs My, we fmd a distance modulus of 10.5 mag for NGC 6910 and 10.2 mag for NOC 6913. Neither cluster is rich in members, but both certainly appear real. For NOC 6913, the distance modulus from the photometry does not agree well with that found by use of MK spectra; the agreement is good for NGC 6910. The brightest star in NGC 6910 is an Ia supergiant with absolute magnitude My = -6.9. Publication: The Astronomical Journal Pub Date: August 1977 DOI: 10.1086/112093 Bibcode: 1977AJ.....82..606C Keywords: Electrophotometry; H Beta Line; Open Clusters; Stellar Spectrophotometry; Ubv Spectra; B Stars; Interstellar Extinction; O Stars; Stellar Temperature; Tables (Data); Astronomy full text sources ADS | data products SIMBAD (52) GCPD (1) Related Materials (13) Part 1: 1966AJ.....71..206C Part 2: 1975PASP...87..721S Part 3: 1969AJ.....74..407C Part 4: 1976PASP...88..174S Part 5: 1969AJ.....74..818C Part 6: 1970AJ.....75..822C Part 7: 1970AJ.....75..946C Part 8: 1970AJ.....75..952C Part 9: 1971AJ.....76.1048C Part 10: 1972AJ.....77..862C Part 11: 1974AJ.....79..623C Part 12: 1974AJ.....79..687C Part 13: 1976AJ.....81..419C