Why is Achernar flat?
Extreme rotation speed has flattened Achernar. As of 2015, Achernar was the least spherical star known in the Milky Way. It spins so rapidly that it has assumed the shape of an oblate spheroid with an equatorial diameter 35% greater than its polar diameter.
Extreme rotation speed has flattened Achernar. As of 2015, Achernar was the least spherical star known in the Milky Way. It spins so rapidly that it has assumed the shape of an oblate spheroid with an equatorial diameter 35% greater than its polar diameter.
