Star
A yellow giant and the brightest star in Hercules, its name meaning club-bearer.
| Type | Star |
|---|---|
| Distance from Earth | 148 ly |
| Diameter | 23,675,600 km |
| Mass | 5.77 × 10³⁰ kg |
| Temperature | 4,614°C |
| Apparent magnitude | 2.78 |
| Redshift | 0 |
| Hemisphere | Northern |
| 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 23,675,600 km across, Kornephoros is 17 times the diameter of the Sun.
Its mass is 2.9 times the mass of the Sun.
The light reaching us from Kornephoros tonight left it around 148 years ago.
Its surface sits at 4,887 K, cooler than the Sun at 5,772 K, which is what sets its colour.
It has been on record since the year 150.
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