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