hip-72323

Its story

55 Hydrae is a blue-white B-type star 743 light-years away, lying in the long body of Hydra —the largest constellation in the sky, a celestial serpent stretched across more than a hundred degrees from horizon to horizon—. Its surface easily exceeds 10,000 K, the mark of a young, hot star whose life will be brief on stellar scales: B-class stars like this rarely last more than a few hundred million years before evolving onward.