hip-25223

Hot blue star

Its story

Beside Orion, on the rim of the nebula that gives shape to the hunter, burns a blue type-B star far hotter than the Sun. Its light set off 877 years ago: it left around 1148, as Alfonso VII of León received the imperial title in Toledo and styled himself emperor of all Hispania. A cold spark, hidden inside the glow of the most photographed nebula in the sky.

Constellation: Orion
Apparent magnitude: 5.69
Distance: 876.9 light years
Coordinates (J2000): RA 80.926° · Dec -0.160°
Catalogue: HIP 25223 · HD 35299

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Symbolic commemorative gift — no ownership, no IAU recognition.