NASA NTRS · 19790052121
Equatorial UBVRI photoelectric sequences
Abstract
From 1335 BVRI observations of 189 stars in selected areas 92-115, Landolt's (1973) network of faint UBV standards has been extended to R I. Of these stars, 173 have four or more observations. The (U-B) values of Landolt are adopted, and a well-observed equatorial faint-star network is presented on the Johnson UBVRI photometric system.
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Moffett, T. J., Barnes, T. G., III. 1979-05-01. Equatorial UBVRI photoelectric sequences. https://ntrs.nasa.gov/citations/19790052121
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