Zeta1 Scorpii

Zeta1 Scorpii is a blue hypergiant star in the constellation Scorpius. It has a diameter over a hundred times that of the Sun and is nearly a million times brighter.

References

↑ Clark, J. S.; Najarro, F.; Negueruela, I.; Ritchie, B. W.; Urbaneja, M. A.; Howarth, I. D. "On the nature of the galactic early-B hypergiants". Astronomy & Astrophysics. 541: A145. doi:10.1051/0004-6361/201117472. ISSN 0004-6361.

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[1] Clark, J. S.; Najarro, F.; Negueruela, I.; Ritchie, B. W.; Urbaneja, M. A.; Howarth, I. D. "On the nature of the galactic early-B hypergiants". Astronomy & Astrophysics. 541: A145. doi:10.1051/0004-6361/201117472. ISSN 0004-6361.