
Star profile
Theta Herculis
Highly luminous starWhat is Theta Herculis
Theta Herculis is a luminous orange giant of type K burning some 753 light-years away in the figure of the kneeling hero. At that distance, the mere fact that the naked eye still catches it speaks of overwhelming power: it shines hundreds of times brighter than the Sun. Its faintly irregular pulse, characteristic of evolved giants, betrays a star already moving into the final acts of its existence.
Where it is and when to see it
Theta 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 Theta Herculis
- Constellation
- Hercules
- Apparent magnitude
- 3.86
- Distance
- 753.3 light years
- Coordinates (J2000)
- RA 269.063° · Dec 37.251°
- Catalogue
- HIP 87808 · HD 163770
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
- Iota Herculis3.82
- Omicron Herculis3.84
- 109 Herculis3.85
- Tau Herculis3.91
- Epsilon Herculis3.92