Star profile
64 Eridani
Variable starWhat is 64 Eridani
64 Eridani is an F-class variable star roughly 290 light-years away, immersed in the long celestial channel of the river Eridanus. Its brightness does not stay still: it pulses gently over time, a faint heartbeat that betrays physical changes in its atmosphere. The light reaching us tonight left in the late eighteenth century, when the first hot-air balloons were rising over Europe.
Where it is and when to see it
64 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, when it culminates around midnight.
- From London it culminates about 26° above the horizon.
- From New York it culminates about 37° above the horizon.
- From Sydney it culminates about 69° above the horizon.
It can be seen from anywhere south of 77° N.
It ranks no. 41 in brightness among the 129 stars of Eridanus in our catalogue. To find it, start from Achernar, the brightest: it lies about 59° away (a fist at arm's length covers about 10°).
The light you see today left it about 290 years ago.
It opens in your browser. Free, no account, nothing to install.
Leave your signature on 64 Eridani
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 64 Eridani
- Constellation
- Eridanus
- Apparent magnitude
- 4.78
- Distance
- 290.2 light years
- Coordinates (J2000)
- RA 74.982° · Dec -12.537°
- Catalogue
- HIP 23231 · HD 32045
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 124134.74
- 17 Eridani4.74
- AngetenarTau 2 Eridani4.76
- ZibalZeta Eridani4.80
- Psi Eridani4.80