Star profile
Theta Norma
Hot blue starWhat is Theta Norma
Theta Normae is a blue-white star of just seventeen million years — a newborn in cosmic terms — sitting 386 light-years away. It is a mercury-manganese star: a spectral curiosity in which those two heavy elements accumulate anomalously on its surface through delicate atomic diffusion processes. It belongs to Norma, the small southern constellation shaped like a carpenter's set square.
Where it is and when to see it
Theta Norma lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is June: 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 Theta Norma
- Constellation
- Norma
- Apparent magnitude
- 5.13
- Distance
- 385.6 light years
- Coordinates (J2000)
- RA 243.814° · Dec -47.372°
- Catalogue
- HIP 79653 · HD 145842
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Norma
Norma has 26 stars in Stelvia's catalogue. Here are a few of them.
- Gamma 2 Norma4.01
- Epsilon Norma4.46
- Iota 1 Norma4.63
- Mu Norma4.86
- Kappa Norma4.95
- Gamma 1 Norma4.97
- HIP 802085.32
- HIP 807825.35