hip-29736

Hot blue star

Its story

73 Orionis is a hot blue B-type star in a constellation famous for its young, energetic suns. About 1165 light-years away, its light left around the 9th century, when the Caliphate of Córdoba was reaching its cultural peak. Such blue stars live fast and die early: the one we see today is, almost certainly, already different from the star that emitted this light more than a thousand years ago.

Constellation: Orion
Apparent magnitude: 5.44
Distance: 1165.0 light years
Coordinates (J2000): RA 93.937° · Dec 12.551°
Catalogue: HIP 29736 · HD 43247

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Symbolic commemorative gift — no ownership, no IAU recognition.