4 Cen
4 Cen
4 Cen is a B-type (Blue-White) star located in the constellation Centaurus. It carries the designation 4 Cen.
Located approximately 637.0 light-years from Earth, 4 Cen resides within the broader disk of our Milky Way galaxy.
4 Cen is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.75, 4 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 -0.111.
Propriedades físicas
| Classe Espectral | B Class B — B-type (Blue-White) |
| Índice de cor (B−V) | -0,111 |
Observação
| Magnitude Aparente | +4.75 |
| Magnitude Absoluta | -1,70 |
| Distância | 637 ly |
| Constelação | Centaurus |
Posição
| Ascensão reta | 13h 53,21m |
| Declinação | -31° 55,66′ |
Frequently Asked Questions
What type of star is 4 Cen?
4 Cen is a Class B — B-type (Blue-White) star.
How far is 4 Cen from Earth?
4 Cen is approximately 637.0 light-years from Earth.
Can you see 4 Cen with the naked eye?
With an apparent magnitude of 4.75, 4 Cen is visible to the naked eye.
What constellation is 4 Cen in?
4 Cen is located in the constellation Centaurus.