Datatype: VRIcCCD

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 vricccd refers to the VRI CCD photometry in the system of Cousins. Observations of V and I only are recorded under the datatype VIcCCD.

Record structure

No:Star number
Ref:Data source
V:V magnitude
V-R:V-R colour index
R-I:R-I colour index

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Last Update: 17 February 1998