  The spectroscopic orbit of a high proper motion visual binary system BD +30
2129 component A is determined from 22 CORAVEL-type radial velocity
measurements. A period of P = 32.79 days and a moderate eccentricity e = 0.29
are obtained. The visual system AB has a projected spatial separation ~580 AU.
The system's barycenter velocity V0 = -35.95 km/s and the transverse velocity
Vt = 132.2 km/s. The Galactic spatial velocity components U = +76.7 km/s, V =
110.4 km/s, W = -26.6 km/s, and a large ultraviolet excess give evidence that
the star belongs to thick disk population of the Galaxy.
