HYG 117981
HYG 117981 is a M-type (Red) star located in the constellation Andromeda.
HYG 117981 lies approximately 40.8 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 40 years ago.
HYG 117981 is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
At an apparent magnitude of +16.05, HYG 117981 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 +1.980.
Propriedades físicas
| Classe Espectral | M Class M — M-type (Red) |
| Índice de cor (B−V) | 1,980 |
Observação
| Magnitude Aparente | +16.05 |
| Magnitude Absoluta | 15,56 |
| Distância | 40.8 ly |
| Constelação | Andromeda |
Posição
| Ascensão reta | 0h 20,48m |
| Declinação | 33° 5,24′ |
Frequently Asked Questions
What type of star is HYG 117981?
HYG 117981 is a Class M — M-type (Red) star.
How far is HYG 117981 from Earth?
HYG 117981 is approximately 40.8 light-years from Earth.
Can you see HYG 117981 with the naked eye?
With an apparent magnitude of 16.05, HYG 117981 is not visible to the naked eye.
What constellation is HYG 117981 in?
HYG 117981 is located in the constellation Andromeda.