Альциона
25Eta Tau
Альциона is a B-type (Blue-White) star located in the constellation Taurus. It carries the designation 25Eta Tau.
Located approximately 403.2 light-years from Earth, Альциона resides within the broader disk of our Milky Way galaxy.
Альциона is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
At an apparent magnitude of +2.85, Альциона is visible to the naked eye under reasonably clear skies. It may require dark-sky conditions to be seen comfortably in areas with significant light pollution. Observers will note its blue hue, which corresponds to a B-V color index of -0.086.
Физические свойства
| Спектральный класс | Class B — B-type (Blue-White) |
| Показатель цвета (B−V) | -0,086 |
Наблюдение
| Видимая звёздная величина | +2.85 |
| Абсолютная звёздная величина | -2,61 |
| Расстояние | 403 ly |
| Созвездие | Taurus |
Положение
| Прямое восхождение | 3h 47,48m |
| Склонение | 24° 6,31′ |
Часто задаваемые вопросы
What type of star is Альциона?
Альциона is a Class B — B-type (Blue-White) star.
How far is Альциона from Earth?
Альциона is approximately 403.2 light-years from Earth.
Can you see Альциона with the naked eye?
With an apparent magnitude of 2.85, Альциона is visible to the naked eye.
What constellation is Альциона in?
Альциона is located in the constellation Taurus.