RR Lyrae Observations
RR Lyrae Observations. M B,V,I,K = m B,V,I,K - 5 log d + 5 To calibrate M B,V,I,K we need: • BVIK light curves for field RRL • • BVIK light curves for cluster RRL •. BVIK light curves of field RRL. 60 field RRL in A-List BVI : Most have PE/CCD B,V light curves.
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