Star profile
Zeta 4 Librae
Hot blue starWhat is Zeta 4 Librae
Zeta-4 Librae is a blue main-sequence star in the Scales, part of a scattered multiple system known simply as «Zeta Librae». Its 8,900 K surface places it at the hot end of the visible sky, and its luminosity exceeds five hundred times that of the Sun. At 656 light-years by the Hipparcos figure, it shines near the imaginary pivot of the only zodiacal constellation that is not a living creature.
Where it is and when to see it
Zeta 4 Librae lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May: 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.
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
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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 Zeta 4 Librae
- Constellation
- Libra
- Apparent magnitude
- 5.53
- Distance
- 656.3 light years
- Coordinates (J2000)
- RA 233.230° · Dec -16.853°
- Catalogue
- HIP 76126 · HD 138485
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Libra
Libra has 49 stars in Stelvia's catalogue. Here are a few of them.
- ZubeneschamaliBeta Librae2.61
- ZubenelgenubiAlpha 2 Librae2.75
- BrachiumSigma Librae3.25
- HIP 761065.50
- HIP 734975.52
- HIP 747325.52
- HIP 774645.53
- 50 Librae5.53