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Star profile

Zeta Herculis

Nearby star
3D likeness based on its real data · class F · ~6,500 K

What is Zeta Herculis

Zeta Herculis shines from just 35 light-years away, a luminous neighbour at the heart of the celestial Hero. Yellow-white like a Sun grown slightly older, its light reaches us across a distance a photon crosses in barely three and a half decades. To watch it is to look upon one of the rare bright stars close enough that the cosmos, for a moment, feels like a neighbourhood.

Where it is and when to see it

Zeta 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 May, when it culminates around midnight.

  • From London it culminates about 70° above the horizon.
  • From New York it culminates about 81° above the horizon.
  • From Sydney it culminates about 24° above the horizon.

It can be seen from anywhere north of 58° S.

It ranks no. 3 in brightness among the 136 stars of Hercules in our catalogue. To find it, start from Kornephoros, the brightest: it lies about 10° away (a fist at arm's length covers about 10°).

The light you see today left it about 35 years ago.

Find it on the sky map

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Leave your signature on Zeta Herculis

Your name and a message go up on the map for everyone to read. Signing is free.

Without a lock, someone else can replace your signature. How the lock works

We'll ask for an email to confirm it's you, 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 Zeta Herculis

Constellation
Hercules
Apparent magnitude
2.81
Distance
35.0 light years
Coordinates (J2000)
RA 250.322° · Dec 31.603°
Catalogue
HIP 81693 · HD 150680

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