Star profile
Nu Eridani
Variable starWhat is Nu Eridani
It is the best-known star of its entire class: a hot blue point in the river Eridanus whose internal oscillations have been deciphered more thoroughly than those of any other Beta Cephei variable. It pulses on at least fourteen distinct frequencies — a seismic orchestra that astronomers have tracked in multi-site campaigns to reconstruct its nuclear core. The light reaching us now set out around the 14th century, and arrives after 675 years across the void of a neighbouring galactic arm.
Where it is and when to see it
Nu 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 November: 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.
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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.
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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 Nu Eridani
- Constellation
- Eridanus
- Apparent magnitude
- 3.93
- Distance
- 675.4 light years
- Coordinates (J2000)
- RA 69.080° · Dec -3.352°
- Catalogue
- HIP 21444 · HD 29248
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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
- TheeminUpsilon 2 Eridani3.81
- Sceptrum3.86
- AzhaEta Eridani3.89
- Beemim3.97
- Mu Eridani4.01