Star
An orange giant with a known exoplanet, once marking the vernal equinox.
| Type | Star |
|---|---|
| Distance from Earth | 66 ly |
| Diameter | 20,731,860 km |
| Mass | 2.98 × 10³⁰ kg |
| Temperature | 4,207°C |
| Apparent magnitude | 2 |
| 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 20,731,860 km across, Hamal is 15 times the diameter of the Sun.
Its mass is 1.5 times the mass of the Sun.
The light reaching us from Hamal tonight left it around 66 years ago.
Its surface sits at 4,480 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