Alkaphrah
12Kap UMa
Alkaphrah is a A-type (White) star located in the constellation Ursa Major. It carries the designation 12Kap UMa.
Located approximately 358.4 light-years from Earth, Alkaphrah resides within the broader disk of our Milky Way galaxy.
Alkaphrah is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
At an apparent magnitude of +3.57, Alkaphrah 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. Observers will note its blue-white hue, which corresponds to a B-V color index of +0.007.
Propriedades físicas
| Classe Espectral | Class A — A-type (White) |
| Índice de cor (B−V) | 0,007 |
Observação
| Magnitude Aparente | +3.57 |
| Magnitude Absoluta | -1,64 |
| Distância | 358 ly |
| Constelação | Ursa Major |
Posição
| Ascensão reta | 9h 3,63m |
| Declinação | 47° 9,39′ |
Perguntas frequentes
What type of star is Alkaphrah?
Alkaphrah is a Class A — A-type (White) star.
How far is Alkaphrah from Earth?
Alkaphrah is approximately 358.4 light-years from Earth.
Can you see Alkaphrah with the naked eye?
With an apparent magnitude of 3.57, Alkaphrah is visible to the naked eye.
What constellation is Alkaphrah in?
Alkaphrah is located in the constellation Ursa Major.