Datatype: VRIj
For historical reasons, the VRI photometry has produced several systems
which have quite similar, but the V-R and R-I indices are not exactly
in the same standard system. Therefore a datatype has been attributed to
each realisation of the VRI filter combination.
The datatype vrij refers to the VRI photoelectric photometry in the
system of Johnson.
The (U)BV colours are stored with the ubv data.
Record structure
| No | : | Star number |
|---|
| Ref | : | Data source |
|---|
| V | : | V magnitude |
|---|
| V-R | : | V-R colour index |
|---|
| R-I | : | R-I colour index |
|---|
Database access
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Jean-Claude.Mermilliod@obs.unige.ch
Last Update: 17 February 1998