Castor B
66Alp Gem
Castor B is a A-type (White) star located in the constellation Gemini. It carries the designation 66Alp Gem.
Located approximately 51.5 light-years from Earth, Castor B resides within the broader disk of our Milky Way galaxy.
Castor B is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
At an apparent magnitude of +2.85, Castor B is visible to the naked eye under reasonably clear skies. It may require dark-sky conditions to be seen comfortably in areas with significant light pollution.
Propiedades físicas
| Clase Espectral | Class A — A-type (White) |
Observación
| Magnitud Aparente | +2.85 |
| Magnitud Absoluta | 1,86 |
| Distancia | 51.5 ly |
| Constelación | Gemini |
Posición
| Ascensión recta | 7h 34,61m |
| Declinación | 31° 53,43′ |
Preguntas frecuentes
What type of star is Castor B?
Castor B is a Class A — A-type (White) star.
How far is Castor B from Earth?
Castor B is approximately 51.6 light-years from Earth.
Can you see Castor B with the naked eye?
With an apparent magnitude of 2.85, Castor B is visible to the naked eye.
What constellation is Castor B in?
Castor B is located in the constellation Gemini.