HIP 21816
HIP 21816 is a M-type (Red) star.
HIP 21816 is an extraordinarily remote star, situated approximately 326,156 light-years from Earth.
HIP 21816 is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
At an apparent magnitude of +10.12, HIP 21816 is a faint star that requires a telescope to observe. It is invisible to the naked eye and too dim for most binoculars. Observers will note its red hue, which corresponds to a B-V color index of +1.448.
Propiedades físicas
| Clase Espectral | Class M — M-type (Red) |
| Índice de color (B−V) | 1,448 |
Observación
| Magnitud Aparente | +10.12 |
| Magnitud Absoluta | -9,88 |
| Distancia | 326,156 ly |
Posición
| Ascensión recta | 4h 41,30m |
| Declinación | -17° 37,17′ |
Preguntas frecuentes
What type of star is HIP 21816?
HIP 21816 is a Class M — M-type (Red) star.
How far is HIP 21816 from Earth?
HIP 21816 is approximately 326,156.0 light-years from Earth.
Can you see HIP 21816 with the naked eye?
With an apparent magnitude of 10.12, HIP 21816 is not visible to the naked eye.