Tau-9

Its story

Tau-9 Eridani belongs to the long current of the river Eridanus, that meandering constellation that flows down from Orion to the outer reaches of the southern sky. It is a variable white A-type star more than three hundred light-years away, whose brightness shifts subtly around a mean value. It is part of the fleet of small lights that give body to the mythological riverbed, far from the headwaters where mighty Achernar burns.