NGC6530

In Mayne et al. (2007) member photometry for this cluster was taken from Prisinzano et al. (2005). We fit an empirical isochrone to only those stars marked as X-ray sources in Prisinzano et al. (2005) and H&alpha sources members in Sung et al. (2000). Using a this empirical isochrone in a relative age ladder results in an age of 1Myrs. A very good candidate feature for an R-C gap can be seen in this sequence.