emamajek on 01-May-2020 18:41:20 GMT about
Nearby binary star (d = 19.85 pc) in Tian+2020
2020ApJS..246....4T
, who demonstrates common proper motion with Gaia DR2 data (sep=2.18446", physical separation 43.411 au). The pair is not yet in WDS as of 5/1/2020.
A = Gaia DR2 2928420272788743296
B = Gaia DR2 2928420272788743424
plx(A) = 50.3199 0.0431 mas (GaiaDR2)
plx(B) = 50.3687 0.0442 mas (GaiaDR2)
Unresolved pair is:
2MASS J07111696-2117546
WISE J071116.92-211755.5
ATOID J107.8200-21.2987 (variable star
2018AJ....156..241H
)
2RXS J071117.1-211749 (X-ray source 2016A&A...588A.103B, 7.8" away)
1RXS J071117.1-211748 (X-ray source
2000IAUC.7432R...1V
, 8.2" away, position error 12")
Note that the 1RXS sources is the only one currently with a SIMBAD entry, hence why annotation is attached to this source.
Given the colors and absolute magnitudes, the binary is probably a pair of mid-M dwarfs (~M4/M5).
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