Star
A yellow giant and the brightest star in Pisces, a zodiac constellation with no star brighter than third magnitude.
| Type | Star |
|---|---|
| Distance from Earth | 350 ly |
| Diameter | 36,209,700 km |
| Mass | 7.52 × 10³⁰ kg |
| Temperature | 4,657°C |
| Apparent magnitude | 3.62 |
| 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 36,209,700 km across, Alpherg is 26 times the diameter of the Sun.
Its mass is 3.8 times the mass of the Sun.
The light reaching us from Alpherg tonight left it around 350 years ago.
Its surface sits at 4,930 K, cooler 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