84 UMa
84 UMa
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84 UMa is a B-type (Blue-White) star located in the constellation Ursa Major. It carries the designation 84 UMa.
Located approximately 290.4 light-years from Earth, 84 UMa resides within the broader disk of our Milky Way galaxy.
84 UMa is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.68, 84 UMa 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 -0.039.
Physikalische Eigenschaften
| Spektralklasse | B Class B — B-type (Blue-White) |
| Farbindex (B−V) | -0,039 |
Beobachtung
| Scheinbare Helligkeit | +5.68 |
| Absolute Helligkeit | 0,93 |
| Entfernung | 290 ly |
| Sternbild | Ursa Major |
Position
| Rektaszension | 13h 46,59m |
| Deklination | 54° 25,96′ |