
Star profile
66 Eridani
Variable starWhat is 66 Eridani
66 Eridani is a B-type variable star some 309 light-years away, embedded in the long celestial channel of the river Eridanus. Its hot, blue-tinted atmosphere flickers gently near magnitude 5.12, a pulsation only photometric monitoring reveals clearly. Eridanus winds from the feet of Orion toward the south, and among its many stellar meanders this blue variable adds a kinetic note to the flowing river of light.
Where it is and when to see it
66 Eridani lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is December: 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 66 Eridani
- Constellation
- Eridanus
- Apparent magnitude
- 5.12
- Distance
- 308.9 light years
- Coordinates (J2000)
- RA 76.690° · Dec -4.655°
- Catalogue
- HIP 23794 · HD 32964
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Eridanus
Eridanus has 129 stars in Stelvia's catalogue. Here are a few of them.
- AchernarAlpha Eridani0.45
- CursaBeta Eridani2.78
- AcamarTheta 1 Eridani2.88
- HIP 82415.04
- HIP 182135.11
- 68 Eridani5.11
- HIP 137175.16
- Xi Eridani5.17