Star
The brightest star in Sagittarius, marking the base of the archer's bow.
| Type | Star |
|---|---|
| Distance from Earth | 140 ly |
| Diameter | 9,461,520 km |
| Mass | 6.96 × 10³⁰ kg |
| Temperature | 9,687°C |
| Apparent magnitude | 1.85 |
| Redshift | 0 |
| Hemisphere | Southern |
| Discovered | 150 |
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 9,461,520 km across, Kaus Australis is 6.8 times the diameter of the Sun.
Its mass is 3.5 times the mass of the Sun.
The light reaching us from Kaus Australis tonight left it around 140 years ago.
Its surface sits at 9,960 K, hotter than the Sun at 5,772 K, which is what sets its colour.
It has been on record since the year 150.
Play today's Cosmodle