Regulus

Star

A rapidly spinning blue-white star flattened into an oval by its own rotation.

Facts

TypeStar
Distance from Earth79 ly
Diameter4,299,426 km
Mass7.56 × 10³⁰ kg
Temperature12,187°C
Apparent magnitude1.39
Redshift0
HemisphereNorthern
Discovered150

Regulus in context

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 4,299,426 km across, Regulus is 3.1 times the diameter of the Sun.

Its mass is 3.8 times the mass of the Sun.

The light reaching us from Regulus tonight left it around 79 years ago.

Its surface sits at 12,460 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