No star has been selected yet.
You haven't picked a star yet
Back to the selector
Your star
Mu
Cool red starIts story
Mu Coronae Borealis is a vast red giant, sixty-seven times the Sun's radius, set upon the delicate arc of the Northern Crown. Its surface hovers around just 3,200 K —cool by stellar standards— yet pours out nearly a thousand times the Sun's light. A deep ember, barely visible from truly dark skies.
- Constellation
- Corona Borealis
- Apparent magnitude
- 5.14
- Distance
- 619.0 light years
- Coordinates (J2000)
- RA 233.812° · Dec 39.010°
- Catalogue
- HIP 76307 · HD 139153
Take your star to the gift that suits you best.
Choose a tierSymbolic commemorative gift — no ownership, no IAU recognition.