Kap

Its story

Kappa Hydrae is a bluish B-type star some 436 light-years away —hot, young, and far more luminous than the Sun despite its modest apparent brightness. It rests upon the back of the sky's longest serpent, in a stretch of the constellation crossing the frontier between the spring constellations. Its cool light is the echo of nuclear processes far more energetic than those of the star that lights our days.