Kapteyn's Star
Kapteyn's Star is a M-type (Red) star.
At a distance of approximately 12.8 light-years, Kapteyn's Star is one of the Sun's closest stellar neighbors. Light that we observe from Kapteyn's Star today left the star roughly 12 years ago, making it a near neighbor in galactic terms.
Kapteyn's Star is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
Kapteyn's Star 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.
Đặc tính vật lý
| Phân Loại Quang Phổ | M Class M — M-type (Red) |
| Chỉ số màu (B−V) | 1,543 |
Quan sát
| Cấp Sao Biểu Kiến | +8.86 |
| Cấp Sao Tuyệt Đối | 10,90 |
| Khoảng Cách | 12.8 ly |
Vị trí
| Xích kinh | 5h 11,65m |
| Xích vĩ | -45° 1,11′ |
Frequently Asked Questions
What type of star is Kapteyn's Star?
Kapteyn's Star is a Class M — M-type (Red) star.
How far is Kapteyn's Star from Earth?
Kapteyn's Star is approximately 12.8 light-years from Earth.
Can you see Kapteyn's Star with the naked eye?
With an apparent magnitude of 8.86, Kapteyn's Star is not visible to the naked eye.