Star profile
Mu Herculis
Nearby starWhat is Mu Herculis
Mu Herculis is a near neighbour, just 27 light-years away — a yellow subgiant cousin to the Sun, slightly older and more swollen. It is a multiple system: a pair of red dwarfs accompany it in a slow orbit, visible even through modest telescopes as two reddish sparks beside the primary. A domestic arrangement, on a stellar scale, that invites the thought of three suns lifting on the same dawn.
Where it is and when to see it
Mu Herculis lies in the northern 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 Herculis
- Constellation
- Hercules
- Apparent magnitude
- 3.42
- Distance
- 27.1 light years
- Coordinates (J2000)
- RA 266.615° · Dec 27.721°
- Catalogue
- HIP 86974 · HD 161797
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Hercules
Hercules has 136 stars in Stelvia's catalogue. Here are a few of them.
- KornephorosBeta Herculis2.78
- RasalgethiAlpha 1 Herculis2.78
- Zeta Herculis2.81
- SarinDelta Herculis3.12
- Pi Herculis3.16
- Eta Herculis3.48
- Xi Herculis3.70
- Gamma Herculis3.74