Star
The brightest star in Hydrus and one of the closest bright stars to the Sun, an older and more evolved version of it.
| Type | Star |
|---|---|
| Distance from Earth | 24.3 ly |
| Diameter | 2,519,360 km |
| Mass | 2.15 × 10³⁰ kg |
| Temperature | 5,599°C |
| Apparent magnitude | 2.8 |
| Redshift | 0 |
| Hemisphere | Southern |
| Discovered | 1597 |
Stars spend most of their lives fusing hydrogen into helium in their core, and it's the balance between that outward pressure and gravity pulling inward that fixes how big and how bright a star gets.
At 2,519,360 km across, Beta Hydri is 1.8 times the diameter of the Sun.
Its mass is 1.1 times the mass of the Sun.
The light reaching us from Beta Hydri tonight left it around 24 years ago.
Its surface sits at 5,872 K, hotter than the Sun at 5,772 K, which is what sets its colour.
It has been on record since 1597.
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