Star profile
73 Orionis
Hot blue starWhat is 73 Orionis
73 Orionis is a hot blue B-type star in a constellation famous for its young, energetic suns. About 1165 light-years away, its light left around the 9th century, when the Caliphate of Córdoba was reaching its cultural peak. Such blue stars live fast and die early: the one we see today is, almost certainly, already different from the star that emitted this light more than a thousand years ago.
Where it is and when to see it
73 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 73 Orionis
- Constellation
- Orion
- Apparent magnitude
- 5.44
- Distance
- 1165.0 light years
- Coordinates (J2000)
- RA 93.937° · Dec 12.551°
- Catalogue
- HIP 29736 · HD 43247
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
- HIP 220445.39
- 75 Orionis5.39
- 16 Orionis5.43
- 33 Orionis5.46
- HIP 244505.50