77天,也就是说,双星互相绕行的周期为17.77天。 奎宿二在仙女座的位置可以参见下图: V* zet And -- Eclipsing binary of beta Lyr type, database entry, SIMBAD. Accessed on line August 29, 2008. zet And, database
Bibcode:1999IBVS.4698....1K. Gray, R. O.; Graham, P. W.; Hoyt, S. R. The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. II.