Star
Arcturus
Arcturus is an orange star 36.7 light-years away, seen as it was 37 years ago, shining 116 times as bright as the Sun.
The brightest star in the northern half of the sky, a red giant 25 times the Sun's size. Its light opened the 1933 Chicago World's Fair.
See it live
It is on the live 3D map, where it really is.
Key facts
- Distance
- 36.7 light-years
- Brightness from Earth
- magnitude −0.05
- Spectral type
- K2IIIp
- Catalogue
- HIP 69673
See it from here
Bright enough to see with your own eyes from a dark place.
How the map draws it
Drawn as a point of light, sized by how bright it looks from where you are — the kind of thing, not this exact one.