Datatype: RIcCCD
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 ricccd refers to the RI CCD photometry in the
system of Cousins. In some observation sets, only the R and I colours
have been observed. Observations of V and I only are recorded under the
datatype VIcCCD.
Record structure
| No | : | Star number |
|---|
| Ref | : | Data source |
|---|
| I | : | I magnitude |
|---|
| R-I | : | R-I colour index |
|---|
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Last Update: 11 April 2010