Yigor on 14-Apr-2010 17:52:13 GMT about Ross 248
transverse velocity = 23.82 km/s from SIMBAD data here and radvel = -80.3 [2.9] (CRVAD-2,III/254) => distance of closest approach = 0.90 pc ; time of closest approach = +35.4 kyr in linear approx.
period of the transit within 3 pc from the Sun : +2.0 --> +68.8 kyr
within 2 pc : +14.6 --> +56.3 kyr
within 1 pc : +34.9 --> +35.9 kyr
Space velocities (U,V,W) = (+33.29, -76.85,+1.12) from the data above.
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View annotation on Ross 248 object