Achernar

Eridanus · Eri · α Eri · HR 472 · HIP 7588 · magnitude 0.45

Arabic name آخر النهر (āḫiru ʾn-nahr) meaning, the End of the River; originally used for θ Eri that was considered the end of the river in the ancient star catalog (Almagest).The name was transferred to α Eri in Renaiss…

Astronomy

Official IAU information

Designation

HR 472

HIP

7588

Bayer ID

α Eri

Visual magnitude

0.45

Right ascension (J2000)

24.4285°

Declination (J2000)

-57.2368°

IAU adoption

2016/06/30

Name origin

Arabic name آخر النهر (āḫiru ʾn-nahr) meaning, the End of the River; originally used for θ Eri that was considered the end of the river in the ancient star catalog (Almagest).The name was transferred to α Eri in Renaissance times when the constellation was extended south to this new terminus.