Achernar
- HIP
- 7588
- Designation
- Alp Eri
- Bayer designation
- α Eri
- Visual magnitude
- 0.45
- Constellation
- Eridanus
- Name approved by the IAU
- 2016-06-30
The IAU catalogue's account
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 the Early Modern Era when the constellation was extended south to this new terminus.
- Source language
- Arabic
- Reference
- Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub.
Source: IAU Catalog of Star Names (IAU-CSN), Working Group on Star Names. The account is the IAU's own text and is quoted in full: it is published under CC BY.
From Kunitzsch & Smart
- Layer of tradition
- Scientific Arabic
- Ancient-layer signal
- no simple cue found
- Source form
- äkhir al-nahr
- Pronounced
- ä' kor när
- Literal meanings
- the River’s End
- Periods of use
- Renaissance
- Transmission notes
- transferred
Source: Kunitzsch & Smart, A Dictionary of Modern Star Names, 2nd ed. 2006, p. 36
Layer of tradition and ancient-layer signal are not the dictionary authors' judgement but a keyword reading of the entry's wording. “No simple cue found” means exactly that — the parser found none — not that the name is late.
The fields on this card were read off an OCR layer and are not checked against the printed page. The page number is given so the claim can be verified in your own copy.
Corpus chains passing through this star. Deviation is the cross-track angular distance of the third star from the great-circle plane.
- Эридан → Дракон → Большая МедведицаОгненная река Божьего суда → Древний змей - сатана, дьявол → Большое стадо - Церковь
Other named stars of this constellation: