3 Cen
3 Cen
3 Cen is a B-type (Blue-White) star located in the constellation Centaurus. It carries the designation 3 Cen.
Located approximately 343.7 light-years from Earth, 3 Cen resides within the broader disk of our Milky Way galaxy.
3 Cen is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.32, 3 Cen sits near the limit of naked-eye visibility. It can be glimpsed without optical aid under dark skies, but binoculars will make observation much easier. Observers will note its blue hue, which corresponds to a B-V color index of -0.146.
Physical Properties
| Spectral Class | Class B — B-type (Blue-White) |
| Color Index (B−V) | -0.146 |
Observation
| Apparent Magnitude | +4.32 |
| Absolute Magnitude | -0.79 |
| Distance | 344 ly |
| Constellation | Centaurus |
Position
| Right Ascension | 13h 51.83m |
| Declination | -32° 59.65′ |
Frequently Asked Questions
What type of star is 3 Cen?
3 Cen is a Class B — B-type (Blue-White) star.
How far is 3 Cen from Earth?
3 Cen is approximately 343.7 light-years from Earth.
Can you see 3 Cen with the naked eye?
With an apparent magnitude of 4.32, 3 Cen is visible to the naked eye.
What constellation is 3 Cen in?
3 Cen is located in the constellation Centaurus.