Omi-1

Variable star

Its story

Omicron-1 Centauri is one of the few known yellow hypergiants in the sky: stars so unstable and rare that barely a dozen are documented across our entire galaxy. It pulses on a two-hundred-day cycle, shedding mass into space in slow waves, and forms a visual pair with nearby Omicron-2, which accompanies it like a blue echo.

Constellation: Centaurus
Apparent magnitude: 5.07
Distance: 326200.0 light years
Coordinates (J2000): RA 172.942° · Dec -59.442°
Catalogue: HIP 56243 · HD 100261

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