emamajek on 22-Dec-2024 07:08:11 GMT about LP 566-4
Gaia DR3 cross-ID for LP 566-4 (= LSPM J1645+0444):
Gaia DR3 4434686984483336960
Although not yet listed as a binary in WDS,
2023AJ....165..162U
split LSPM J1645+0444 into a resolved binary with Keck/NIRC2 K' and L' band observations. The K' band observations have measurements of separation 0".219+-0".002 at PA=84.53+-0.51deg (Table 4) and apparent magnitudes K'(A)=10.58+-0.02 and K'(B)=10.66+-0.02 (Table 5).
2023AJ....165..162U
estimates the spectral type for the unresolved pair to be M5 +- 0.2 (with such a small delta(K') (=0.08mag), both components are likely to be essentially the same subtype).
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