hip-27965

Hot blue star

Its story

57 Orionis is a B2V spectroscopic binary with a 17,800 K surface, almost three times hotter than the Sun. It lies 1,822 light-years away, within the Hunter's borders but outside his famous figure. The light reaching us now left it around the year 204, deep in the Roman period: each photon has travelled from before the fall of the Empire to touch our eyes in a single starlit night.

Constellation: Orion
Apparent magnitude: 5.92
Distance: 1822.3 light years
Coordinates (J2000): RA 88.736° · Dec 19.750°
Catalogue: HIP 27965 · HD 39698

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Symbolic commemorative gift — no ownership, no IAU recognition.