A new photometric WBVR system

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Astronomical Photometry, Photometers, Reference Stars, Stellar Magnitude, Broadband, Northern Sky, Spectral Sensitivity, Ubv Spectra

Scientific paper

A description of the new broad-band photometric system, WBVR, is given. It is shown that WBVR is close to the UBVR system but is defined by strictly fixed response curves and the primary standard. The construction of a network of secondary standards distributed uniformly in the northern sky, as well as the coordination of the magnitudes of the standards to the self-consistent system are discussed. All standards are examined for a possible brightness variability and it is found that no light variability exceeding 0.015 mag in amplitude is present and that their average magnitude shows stability on a scale of several years. The individual WBVR observations of the standards are presented in tables.

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