- Stars with a name
- Regulus
Regulus
α Leonis
Regulus is a very hot blue star, in the constellation Leo. The light you see from it tonight left it around 1947.
Where to find it
From mid-northern latitudes, such as New York, Rome or Tokyo, it is best seen in the evening sky in February, March, April, and May.
Bright enough to see even from a city. Apparent magnitude 1.36.
What it’s like
It gives off 147 times as much light as the Sun.
Its surface temperature is about 11,100 degrees Celsius.
It is 79.3 light years away: 750 trillion kilometres.
It is the star of people born around 1947: the light that left it then is reaching Earth now.