Star profile
104 Herculis
Variable starWhat is 104 Herculis
104 Herculis is a variable M-type red giant 545 light-years away, set within the torso of the Hero. Its light is not steady —it pulses gently, as if breathing slowly on timescales that humble the human calendar. The deep red of its surface, far cooler than the Sun's, betrays a star in the final great chapter of its biography.
Where it is and when to see it
104 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.
It opens in your browser. Free, no account, nothing to install.
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
If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, no password.
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 104 Herculis
- Constellation
- Hercules
- Apparent magnitude
- 4.96
- Distance
- 544.6 light years
- Coordinates (J2000)
- RA 272.976° · Dec 31.405°
- Catalogue
- HIP 89172 · HD 167006
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
- 60 Herculis4.89
- 106 Herculis4.92
- 98 Herculis4.96
- HIP 834304.97
- MarsicKappa Herculis5.00