U − B vs. B − V diagram obtained by using Massey et al. (1995) and Sharma et al. (2007) photometry (dots); filled circles are diskless candidate members, squares are those compatible with reddening 0.5 < E(B − V) < 0.7 based on the expected photospheric colors by Kenyon & Hartmann (1995) drawn at the E(B − V) values indicated on each line. The reddening vector obtained using the Munari & Carraro (1996) reddening law is also shown.