ABSTRACT
The star α Eridani, at the mouth of the great river depicted in ancient star maps. It is a bluish-white main-sequence star, spectral type B3Vp, and at apparent magnitude 0.45 is the ninth brightest star in the heavens. It is at a distance of 142 light-years, and has a parallax of 0.023''. Its absolute magnitude is −2.7.
