Alula Australis
53Xi UMa
Alula Australis is a G-type (Yellow) star located in the constellation Ursa Major. It carries the designation 53Xi UMa.
Alula Australis lies approximately 34.0 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 33 years ago.
Alula Australis is classified as a spectral class G star (G-type (Yellow)) on the Harvard spectral classification system.
With an apparent magnitude of +4.33, Alula Australis 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 white hue, which corresponds to a B-V color index of +0.590.
Fiziksel Özellikler
| Spektral Sınıf | Class G — G-type (Yellow) |
| Renk İndeksi (B−V) | 0,590 |
Gözlem
| Görünür Parlaklık | +4.33 |
| Mutlak Parlaklık | 4,24 |
| Mesafe | 34.0 ly |
| Takımyıldız | Ursa Major |
Konum
| Sağ Açıklık | 11h 18,19m |
| Dik Açı | 31° 31,73′ |