The primary, designated component A, is a mild barium[14]giant star with a stellar classification of G7III Ba0.4 Fe-1.[3] Morgan and Keenan in 1973 had classified it as a bright giant star with an anomalous underabundance of the CN molecule.[15] Evidence has been found for an overabundance of s-process elements,[5] although this is disputed.[7] The star has 3.4 times the mass and 16.8 times the radius of the Sun.[2] The companion, component B, is a small white dwarf companion with 80% of the mass of the Sun and a class of DA4.[4] It was detected in 1985 by its ultraviolet emission.[8]
12Keenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS...71..245K, doi:10.1086/191373.
12Böhm-Vitense, E.; Johnson, H. R. (June 1985), "Detection of a compact companion of the mild barium star ksi1 Ceti", Astrophysical Journal, 293: 288–293, Bibcode:1985ApJ...293..288B, doi:10.1086/163236.
↑Hoffleit, Dorrit (1996), "A Catalogue of Correlations Between Eclipsing Binaries and Other Categories of Double Stars", The Journal of the American Association of Variable Star Observers, 24 (2): 105–116, Bibcode:1996JAVSO..24..105H.
