Star profile
109 Herculis
What is 109 Herculis
Catalogued as 109 Herculis, this orange K2 giant glows from roughly 119 light-years away, in a quiet region of Hercules. The light arriving now at our telescopes left around the time Pasteur was born, well before modern astrophysics took shape. At magnitude 3.85 it can be glimpsed with the unaided eye under dark skies, a warm orange pinpoint among the constellation's fainter stars in the body of the kneeling hero.
Where it is and when to see it
109 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 109 Herculis
- Constellation
- Hercules
- Apparent magnitude
- 3.85
- Distance
- 119.0 light years
- Coordinates (J2000)
- RA 275.925° · Dec 21.770°
- Catalogue
- HIP 90139 · HD 169414
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
- Gamma Herculis3.74
- Iota Herculis3.82
- Omicron Herculis3.84
- Theta Herculis3.86
- Tau Herculis3.91