Up to 1905, 140 spectroscopic binaries had been discovered; a list of these is given in the Lick Observatory Bulletin, no.
Details of the calculated orbits of 63 spectroscopic binaries are given in Publications of the Alleghany Observatory, vol.
A list of spectroscopic binaries discovered up to 1905 is given in Lick Observatory Bulletin, No.
There is a very striking relation between the eccentricity and the period of a system; in general the binaries of longest period have the greatest eccentricities.
Lvi.; the orbits of the principal binaries are discussed in T.