Star profile
Omega Orionis
Variable starWhat is Omega Orionis
ω Orionis lies just north of Orion's Belt, about 1,380 light-years away. It is a Be star: a blue B3 spinning at dizzying speed —close to 450 km/s at the equator— flinging material into a gaseous disc around itself. That mass loss makes its brightness flicker, marking it as a γ Cassiopeiae variable, caught between rotation and its own instability.
Where it is and when to see it
Omega Orionis lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is December: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.
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The signature wall
Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.
A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works
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A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.
Astronomical data for Omega Orionis
- Constellation
- Orion
- Apparent magnitude
- 4.50
- Distance
- 1382.2 light years
- Coordinates (J2000)
- RA 84.796° · Dec 4.121°
- Catalogue
- HIP 26594 · HD 37490
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Orion
Orion has 128 stars in Stelvia's catalogue. Here are a few of them.
- RigelBeta Orionis0.18
- BetelgeuseAlpha Orionis0.45
- BellatrixGamma Orionis1.64
- Xi Orionis4.45
- Rho Orionis4.46
- Pi 6 Orionis4.47
- HIP 284134.53
- 42 Orionis4.58