The ninth brightest star in the sky and the brightest in the constellation Eridanus, visible only in the southern hemisphere.
〔天文〕阿却尔纳星
Origin
From Arabic, 'end of the river (i.e. Eridanus)'.
Definition of Achernar in US English:
Achernar
proper nounˈakərˌnär
Astronomy
The ninth brightest star in the sky, and the brightest in the constellation Eridanus. It marks the southern limit of Eridanus, and is only visible to observers in the southern hemisphere.