The UBV Photoelectric Photometry Catalogue, or UBV M, is the star brightness catalogue that complies to the
UBV photometric system developed by astronomer
Harold Johnson.
Evolution of the UBV Photoelectric Photometry Catalogue
The early edition of 1968 by Blanco, sometimes referred as simply the "Photoelectric Catalogue" or UBV was replaced by the Mermilliod edition UBV M in 1987 and extended in 1993.
As the
atmospheric extinction
In astronomy, extinction is the absorption and scattering of electromagnetic radiation by dust and gas between an emitting astronomical object and the observer. Interstellar extinction was first documented as such in 1930 by Robert Julius Trum ...
problem associated with the
UBV photometric system became evident, the UBV Photoelectric Photometry Catalogue was phased-out in 2000.
Download locations
The UBV catalog data format is in plain text. After uncompressing by
unzip or
gunzip it can be seen by any text viewers or by the onlin
ADC viewer Specifications for the catalog format are provided at the download sites.
Original catalogue data, 1953-1985, 109293 objects(alternative reference is Mermilliod, 1987)
Catalogue extension, 1986-1992, 25639 objects
Astronomical catalogues of stars
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