4 Her
4 Her
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4 Her is a B-type (Blue-White) star located in the constellation Hercules. It carries the designation 4 Her.
Located approximately 536.4 light-years from Earth, 4 Her resides within the broader disk of our Milky Way galaxy.
4 Her is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.73, 4 Her 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 hue, which corresponds to a B-V color index of -0.102.
Propriedades físicas
| Classe Espectral | B Class B — B-type (Blue-White) |
| Índice de cor (B−V) | -0,102 |
Observação
| Magnitude Aparente | +5.73 |
| Magnitude Absoluta | -0,35 |
| Distância | 536 ly |
| Constelação | Hercules |
Posição
| Ascensão reta | 15h 55,51m |
| Declinação | 42° 33,97′ |