emamajek on 05-Sep-2017 06:08:23 GMT about WT 460
WT 460 binary. As given by 2006A%26A...460L..19M:
A is a star of type M6V (0.12+-0.04 Msun), while B (type L1) likely a brown dwarf of estimated mass 0.070-0.080 Msun. Estimated semi-major axis ~ 6 au, period ~ 40 yr.
Type should probably be listed as M6+L1 ("/" usually indicates "or" rather than "and" among spectral types)
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View annotation on WT 460 object