[2] Its annual parallax shift of 15.24 mas as seen from Earth implies a distance around 210 light years from the Sun.
[3] The visible component has a stellar classification of B9.5 Vs,[3] indicating it is a B-type main-sequence star.
It is a suspected magnetic Ap star that shows an abundance anomaly with the element silicon.
[13] Consequently, the Chinese name for σ Leonis itself is 太微右垣二 (Tài Wēi Yòu Yuán èr, English: the Second Star of Right Wall of Supreme Palace Enclosure.
[15] 西上將 (Xīshǎngjiāng), spelled Shang Tseang by R.H. Allen, means "the Higher General".