Polaris
1Alp UMi
Polaris is a F-type (Yellow-White) star. It carries the designation 1Alp UMi.
Located approximately 432.6 light-years from Earth, Polaris resides within the broader disk of our Milky Way galaxy.
Polaris is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
Polaris has an apparent magnitude of +1.97, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its yellow-white hue, which corresponds to a B-V color index of +0.636.
Propriétés physiques
| Classe Spectrale | Class F — F-type (Yellow-White) |
| Indice de couleur (B−V) | 0,636 |
Observation
| Magnitude Apparente | +1.97 |
| Magnitude Absolue | -3,64 |
| Distance | 433 ly |
Position
| Ascension droite | 2h 31,79m |
| Déclinaison | 89° 15,85′ |
Related Chemistry
Explore the chemical elements connected to Polaris on our sister site ChemFYI.
Hydrogen lines still prominent in F-type supergiant spectra
Helium from core fusion, now in evolved shell-burning phase
Metallic absorption lines strengthen in F-type stars
Ca II H & K lines become visible in late-F spectra
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