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Loading contentEta Librae is a subgiant in the constellation Libra (Librae), lying about 149.2 light-years from Earth.
Class A. White stars with strong hydrogen lines. Many of the brightest stars in the sky are class A. Such stars have surface temperatures around 7,500–10,000 K and appear white to the eye.
| Spectral type | A6IV |
| Luminosity class | IV |
| Apparent magnitude | 5.41 |
| Absolute magnitude | 2.11 |
| Luminosity (Sun = 1) | 12.497 |
| Colour index (B−V) | 0.238 |
| Distance | 149.2 ly (45.75 pc) |
Values are real catalogue data; fields without a reliable value are omitted, never estimated.
A subgiant has begun to evolve off the main sequence, brightening and expanding as core hydrogen fusion ends.
Facts on this topic will be cited from these primary and reference sources.
Aggregated, openly-licensed star catalogue combining Hipparcos, the Yale Bright Star Catalogue, and the Gliese Catalogue of Nearby Stars.
High-precision parallax, magnitude, and position for ~118,000 stars.