HIP 21644
HIP 21644 is a A-type (White) star.
Located approximately 232.6 light-years from Earth, HIP 21644 resides within the broader disk of our Milky Way galaxy.
HIP 21644 is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.99, HIP 21644 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 blue-white hue, which corresponds to a B-V color index of +0.074.
Propriétés physiques
| Classe Spectrale | A Class A — A-type (White) |
| Indice de couleur (B−V) | 0,074 |
Observation
| Magnitude Apparente | +4.99 |
| Magnitude Absolue | 0,72 |
| Distance | 233 ly |
Position
| Ascension droite | 4h 38,89m |
| Déclinaison | -12° 7,39′ |
Frequently Asked Questions
What type of star is HIP 21644?
HIP 21644 is a Class A — A-type (White) star.
How far is HIP 21644 from Earth?
HIP 21644 is approximately 232.6 light-years from Earth.
Can you see HIP 21644 with the naked eye?
With an apparent magnitude of 4.99, HIP 21644 is visible to the naked eye.