HIP 21661
HIP 21661 is a B-type (Blue-White) star located in the constellation Perseus.
At a distance of roughly 1,853 light-years, HIP 21661 is a distant star lying deep within the Milky Way galaxy.
HIP 21661 is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
HIP 21661 has an apparent magnitude of +9.56, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its white hue, which corresponds to a B-V color index of +0.580.
Propriétés physiques
| Classe Spectrale | Class B — B-type (Blue-White) |
| Indice de couleur (B−V) | 0,580 |
Observation
| Magnitude Apparente | +9.56 |
| Magnitude Absolue | 0,79 |
| Distance | 1,853 ly |
| Constellation | Perseus |
Position
| Ascension droite | 4h 39,05m |
| Déclinaison | 46° 23,43′ |
Questions fréquentes
What type of star is HIP 21661?
HIP 21661 is a Class B — B-type (Blue-White) star.
How far is HIP 21661 from Earth?
HIP 21661 is approximately 1,853.2 light-years from Earth.
Can you see HIP 21661 with the naked eye?
With an apparent magnitude of 9.56, HIP 21661 is not visible to the naked eye.
What constellation is HIP 21661 in?
HIP 21661 is located in the constellation Perseus.