18 Sco
18 Sco
18 Sco is a G-type (Yellow) star located in the constellation Scorpius. It carries the designation 18 Sco.
18 Sco lies approximately 45.3 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 45 years ago.
18 Sco is classified as a spectral class G star (G-type (Yellow)) on the Harvard spectral classification system.
With an apparent magnitude of +5.49, 18 Sco 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 yellow-white hue, which corresponds to a B-V color index of +0.652.
Đặc tính vật lý
| Phân Loại Quang Phổ | Class G — G-type (Yellow) |
| Chỉ số màu (B−V) | 0,652 |
Quan sát
| Cấp Sao Biểu Kiến | +5.49 |
| Cấp Sao Tuyệt Đối | 4,78 |
| Khoảng Cách | 45.3 ly |
| Chòm Sao | Scorpius |
Vị trí
| Xích kinh | 16h 15,62m |
| Xích vĩ | -8° 22,17′ |