2 The Name Star designating 40 in the constellation Eridanus. Some sources say the constellation name is Auriga.
3 Claim to FameOne of the first white dwarfs found. A white dwarf is the exposed extremely hot core of a star that has blown off its outer layers. Made of extremely dense material, a piece the size of a marble would weigh as much as an elephant.
4 Brightness and Size 1/300 times the sun's visible brightness 1/70 sun's radius (1.5 times the Earth's radius). About 1/2 the sun's mass.
5 Type of StarBlue-White Color. Small hot white dwarf (Spectral Class DA4).
6 ViewingWhere to View: In the constellation of Auriga. Not visible to the unaided eye.When to View: Best viewed from the Northern hemisphere during November-January.
9 Quick Facts The star is said to be a burnt out cinder. 40 Eridani B is also known as Keid.40 Eridani B was the first white dwarf discovered in a triple star system of 40 Eridani.It Is 16.5 light years from Earth