This is a wide binary system with an
orbital period of 228 years and an
eccentricity of 0.80.[5] As of 2001, they had a projected separation of 107.0
AU.[6] The magnitude 4.98[3] primary, component A, has a
stellar classification of A7 III,[4] which matches an
A-typegiant star. It is 659[7] million years old with a
projected rotational velocity of 235 km/s. This rate of spin is giving the star an
oblate shape with an
equatorial bulge that is an estimated 27% larger than the polar radius.[8] The companion, component B, is a magnitude 6.95[3]A-type main-sequence star with a class of A8 V:.[4] The ':' suffix indicates some uncertainty in the classification of this star.
^
abcMason, B. D.; et al. (December 2001), "The Washington Visual Double Star Catalog (WDS), Version 2019-01-21", The Astronomical Journal, 122 (6), U. S. Naval Observatory, Washington D.C.: 3466–3471,
Bibcode:
2001AJ....122.3466M,
doi:10.1086/323920.
^
abSöderhjelm, Staffan (1999), "Visual binary orbits and masses POST HIPPARCOS", Astronomy and Astrophysics, 341: 121–140,
Bibcode:
1999A&A...341..121S.
^
abcDe Rosa, R. J.; Patience, J.; Wilson, P. A.; Schneider, A.; Wiktorowicz, S. J.; Vigan, A.; Marois, C.; Song, I.; Macintosh, B.; Graham, J. R.; Doyon, R.; Bessell, M. S.; Thomas, S.; Lai, O. (2014), "The VAST Survey - III. The multiplicity of A-type stars within 75 pc", Monthly Notices of the Royal Astronomical Society, 437 (2): 1216–1240,
arXiv:1311.7141,
Bibcode:
2014MNRAS.437.1216D,
doi:10.1093/mnras/stt1932.
^
abcdDavid, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal, 804 (2): 146,
arXiv:1501.03154,
Bibcode:
2015ApJ...804..146D,
doi:
10.1088/0004-637X/804/2/146,
S2CID33401607.