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Definitive Landolt UBVRI Standard Stars

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Definitive Landolt UBVRI Standard Stars

Can someone tell me where to find the most definitive catalog of Landolt UBVRI standard stars (primarily north, but equatorial and south are also needed)?

I've been using Vizier catalog J/AJ/146/131/standards but it seems to contain errors. Specifically 2MASS J15391619+0008545 is included twice and the second entry seems to relate to J16374581-0028236.

I need a truly definitive version of the Landolt data for automating calibration/transformation.



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