Star profile
Mu Norma
Variable starWhat is Mu Norma
μ Normae dwells within the Square, a southern constellation invented in the eighteenth century. It is a blue supergiant about 3,260 light-years away, with 30 times the Sun's mass and a luminosity estimated between a quarter million and a million Suns —among the brightest stars known. Its brightness drifts slowly between magnitude 4.87 and 4.98: an α Cygni variable, kin to Deneb in the way it breathes.
Where it is and when to see it
Mu 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 Mu Norma
- Constellation
- Norma
- Apparent magnitude
- 4.86
- Distance
- 326200.0 light years
- Coordinates (J2000)
- RA 248.521° · Dec -44.045°
- Catalogue
- HIP 81122 · HD 149038
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
- Eta Norma4.65
- Delta Norma4.73
- Kappa Norma4.95
- Gamma 1 Norma4.97
- Theta Norma5.13