9 Per
9 Per
9 Per is a A-type (White) star located in the constellation Perseus. It carries the designation 9 Per.
9 Per is an extraordinarily remote star, situated approximately 326,156 light-years from Earth.
9 Per is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.16, 9 Per 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 white hue, which corresponds to a B-V color index of +0.369.
Propiedades físicas
| Clase Espectral | A Class A — A-type (White) |
| Índice de color (B−V) | 0,369 |
Observación
| Magnitud Aparente | +5.16 |
| Magnitud Absoluta | -14,84 |
| Distancia | 326,156 ly |
| Constelación | Perseus |
Posición
| Ascensión recta | 2h 22,36m |
| Declinación | 55° 50,74′ |
Frequently Asked Questions
What type of star is 9 Per?
9 Per is a Class A — A-type (White) star.
How far is 9 Per from Earth?
9 Per is approximately 326,156.0 light-years from Earth.
Can you see 9 Per with the naked eye?
With an apparent magnitude of 5.16, 9 Per is visible to the naked eye.
What constellation is 9 Per in?
9 Per is located in the constellation Perseus.