A set of faint equatorial standard stars for BVRI photometry

Details A set of faint equatorial standard stars for BVRI photometry A set of faint equatorial standard stars for BVRI photometry

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aj.....84..633k&link_type=abstract

Astronomical Journal, vol. 84, May 1979, p. 633-638.

Astronomy and Astrophysics

Astronomy

62

Electrophotometers, Infrared Astronomy, Reference Stars, Stellar Spectrophotometry, Ubv Spectra, Visual Photometry, Dwarf Stars, M Stars, Tables (Data)

Scientific paper

BVRI photoelectric photometry is presented for 48 of Landolt's (1973) faint equatorial standard stars. The 48 stars, which have spectral types from A to K and V magnitudes in the range from 8.0 to 12.0, are chosen to provide two blue and two red stars in each of 12 of the equatorial selected areas studied by Landolt. The program stars were observed with an S-1 photomultiplier, with the B-V, V-R, and V-I colors transformed to the Johnson system; they were also observed with an RCA 31034A photomultiplier, with the resulting V-R and V-I colors given on a zero-point-adjusted instrumental system. Observations of several M dwarfs with the two photomultipliers are also reported. Serious problems encountered in transforming the observed V-R and V-I colors of the M dwarfs to the Johnson system are discussed.

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