Map of the Universe
Regulus
Star · Brightest star in the constellation Leo
About Regulus
Regulus is about 79.30 light-years from the Sun, so the light we see from it left about 79.30 years ago.
At apparent magnitude 1.36 it can be seen with the naked eye from a dark site.
It gives out 147 times as much light as the Sun.
The map lists it as a star and shows it among the stars around the Sun, drawn on the plane of the Milky Way.
Key numbers
| Distance | 79.30 light-years (24.31 pc) |
|---|---|
| Spectral type | B7V |
| Apparent magnitude | 1.36 |
| Absolute magnitude | -0.57 |
| Luminosity | 147 × the Sun |
| Constellation | Leo |
Where it is
Its place in the universe, from the inside out: Solar neighbourhood › Local Bubble › Orion–Cygnus Arm (Local Arm) › Milky Way › Local Group › Virgo Supercluster › Laniakea Supercluster › Observable universe.
Zoom out to see it in context: 100 light-years, a view about 220 light-years across.
From Wikipedia
Regulus is the brightest object in the constellation Leo and one of the brightest stars in the night sky. It has the Bayer designation designated α Leonis, which is Latinized to Alpha Leonis, and abbreviated Alpha Leo or α Leo.
Excerpt from the Wikipedia article Regulus, licensed CC BY-SA 4.0.