Left panel: Hess diagram of stars within 4′ of the nominal cluster center using 2MASS photometry. Right panel: member candidates as red points, whereas blue crosses indicate foreground stars that were used as fiber-filler targets. In either case, we highlight the red clump level at KS = 13.35 mag and a Dartmouth isochrone (Dotter et al. 2008), using the best parameters for a reddening (AK = 0.38 mag), distance (14.62 mag), age (10 Gyr), and metallicity (−1.5 dex) from Minniti et al. (2017).
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