UBV photometry in the dwarf irregular galaxy NGC 6822

Abstract

view Abstract Citations (30) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS UBV photometry in the dwarf irregular galaxy NGC 6822. van den Bergh, S. ; Humphreys, R. M. Abstract Photoelectric UBV photometry is presented for a sequence of 63 stars with V between 9.7 and 18.1 that are located in or near NGC 6822. Also given are color observations for four bright star clusters and MK spectral types for 11 of the most luminous stars in this galaxy. Preliminary data indicate that the brightest Cepheid in NGC 6822 may be much bluer than are galactic Cepheids of similar period. The foreground reddening in the direction of NGC 6822 is about 0.3. The average reddening of the brightest stars is found to be 0.42 + or - 0.05, resulting in a true distance modulus of 23.0 and a distance R of about 400 kpc. A comparison with Kayser's (1966) photographic photometry is given. Publication: The Astronomical Journal Pub Date: May 1979 DOI: 10.1086/112456 Bibcode: 1979AJ.....84..604V Keywords: Electrophotometry; Galactic Structure; Stellar Spectrophotometry; Ubv Spectra; B Stars; Cepheid Variables; Galactic Radiation; O Stars; Star Clusters; Supergiant Stars; Tables (Data); Astronomy; Distances:Irregular Galaxies; Dwarf Galaxies:UBV Photometry; Irregular Galaxies:Star Clusters full text sources ADS | data products SIMBAD (1) NED (1) GCPD (1)