HD 17943

HD 17943, or HR 859, is a high proper-motion star in the constellation of Eridanus. It has an apparent magnitude of 6.325. Based on parallax measurements from the Gaia spacecraft, it is at a distance of. It belongs to spectral class A4V.
This star is incorrectly called by the Bayer designation Sigma Eridani in the 1991 edition of the Bright [Star Catalogue]. Bayer's Sigma Eridani is in fact non-existent; he assigned this designation to a 4th-magnitude-star near Eta Eridani, on the opposite side to Rho Eridani, but no naked-eye star is found in that position in modern star atlases.