However the eclipsing binary nature of the system was not discovered until 1956 by Olin J. Eggen at Lick Observatory .
The orbit was determined in 1921 by Clifford Crump using 69 radial velocity measurements obtained at Yerkes Observatory .
The eclipsing binary nature of the system was not discovered until 1956 by Olin J. Eggen at Lick Observatory .
The orbit was determined in 1921 by Clifford Crump using 69 radial velocity measurements obtained at Yerkes Observatory .