HIP 81991
HIP 81991 is a G-type (Yellow) star located in the constellation Hercules.
Located approximately 149.6 light-years from Earth, HIP 81991 resides within the broader disk of our Milky Way galaxy.
HIP 81991 is classified as a spectral class G star (G-type (Yellow)) on the Harvard spectral classification system.
HIP 81991 has an apparent magnitude of +6.55, 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 yellow hue, which corresponds to a B-V color index of +0.890.
Физические свойства
| Спектральный класс | Class G — G-type (Yellow) |
| Показатель цвета (B−V) | 0,890 |
Наблюдение
| Видимая звёздная величина | +6.55 |
| Абсолютная звёздная величина | 3,24 |
| Расстояние | 150 ly |
| Созвездие | Hercules |
Положение
| Прямое восхождение | 16h 45,00m |
| Склонение | 6° 5,29′ |
Часто задаваемые вопросы
What type of star is HIP 81991?
HIP 81991 is a Class G — G-type (Yellow) star.
How far is HIP 81991 from Earth?
HIP 81991 is approximately 149.6 light-years from Earth.
Can you see HIP 81991 with the naked eye?
With an apparent magnitude of 6.55, HIP 81991 is not visible to the naked eye.
What constellation is HIP 81991 in?
HIP 81991 is located in the constellation Hercules.