Datatype: UBVCMD
This datatype is a combination of available UBV data, either average values or
selection on the data sources, to plot colour-magnitude diagrams (CMD). The
aim is to have in the file only one line per star, i.e. the best existing data.
Such a file has not been prepared for all clusters. It has been set up mostly when
many sources of UBV data had to be combined. Otherwise, CM diagrams can be easily
plotted from UBV pg or CCD data.
Record structure
No | : | Star number |
Ref | : | Number of sources or references |
V | : | V magnitude |
B-V | : | B-V colour index |
U-B | : | U-B colour index |
Database access
List of clusters
Query the references
Jean-Claude.Mermilliod@obs.unige.ch
Last Update: 17 February 1998