hip-28574

Hot blue star

Its story

3 Monocerotis is a blue B5III giant about 784 light-years away, in the quiet constellation of the Unicorn. It shines around eleven hundred times brighter than the Sun; all that light pours from a surface so hot it gives the star a blue-white cast. It is drifting from us at 39 km/s, a silent retreat that the geometry of space hides from the unaided eye.

Constellation: Monoceros
Apparent magnitude: 4.92
Distance: 784.1 light years
Coordinates (J2000): RA 90.460° · Dec -10.598°
Catalogue: HIP 28574 · HD 40967

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Symbolic commemorative gift — no ownership, no IAU recognition.