Звезда Каптейна
Звезда Каптейна is a M-type (Red) star.
At a distance of approximately 12.8 light-years, Звезда Каптейна is one of the Sun's closest stellar neighbors. Light that we observe from Звезда Каптейна today left the star roughly 12 years ago, making it a near neighbor in galactic terms.
Звезда Каптейна is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
Звезда Каптейна has an apparent magnitude of +8.86, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its red hue, which corresponds to a B-V color index of +1.543.
Физические свойства
| Спектральный класс | Class M — M-type (Red) |
| Показатель цвета (B−V) | 1,543 |
Наблюдение
| Видимая звёздная величина | +8.86 |
| Абсолютная звёздная величина | 10,90 |
| Расстояние | 12.8 ly |
Положение
| Прямое восхождение | 5h 11,65m |
| Склонение | -45° 1,11′ |
Часто задаваемые вопросы
What type of star is Звезда Каптейна?
Звезда Каптейна is a Class M — M-type (Red) star.
How far is Звезда Каптейна from Earth?
Звезда Каптейна is approximately 12.8 light-years from Earth.
Can you see Звезда Каптейна with the naked eye?
With an apparent magnitude of 8.86, Звезда Каптейна is not visible to the naked eye.