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Star profile

Theta Herculis

Highly luminous star
3D likeness based on its real data · class K · ~4,200 K

What 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.

Find it on the sky map

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 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.

See all 136 stars in Hercules