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Loading content3 Centauri is a main-sequence star in the constellation Centaurus (Centauri), lying about 343.7 light-years from Earth.
Class B. Hot, blue-white stars. Massive and luminous, they often light up the regions where they form. Such stars have surface temperatures around 10,000–30,000 K and appear blue-white to the eye.
| Spectral type | B5 |
| Apparent magnitude | 4.32 |
| Absolute magnitude | -0.79 |
| Luminosity (Sun = 1) | 181 |
| Colour index (B−V) | -0.146 |
| Distance | 343.7 ly (105.37 pc) |
Values are real catalogue data; fields without a reliable value are omitted, never estimated.
A main-sequence star fuses hydrogen into helium in its core. It will remain on the main sequence for most of its life before evolving into a giant.
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.