Datatype: UBVHRD
This datatype is a variant collecting the dereddened magnitudes and colours
when authors have explicitely deredden the stars individually. This is
essential for clusters with differential reddening. However, the number
of clusters for which dereddened data are available is still small.
Such data are mostly useful to plot HR diagrams, which justifies the datatype
designation.
Record structure
| No | : | Star number |
|---|
| Ref | : | Reference |
|---|
| V | : | Vo magnitude |
|---|
| B-V | : | (B-V)o colour index |
|---|
| U-B | : | (U-B)o colour index |
|---|
| E(B-V) | : | B-V colour excess |
|---|
| E(U-B) | : | U-B colour excess |
|---|
Database access
List of clusters
Query the references
Jean-Claude.Mermilliod@obs.unige.ch
Last Update: 17 February 1998