Sao Đại Giác
16Alp Boo
Sao Đại Giác is a K-type (Orange) star. It carries the designation 16Alp Boo.
Sao Đại Giác lies approximately 36.7 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 36 years ago.
Sao Đại Giác is classified as a spectral class K star (K-type (Orange)) on the Harvard spectral classification system.
With an apparent magnitude of -0.05, Sao Đại Giác is one of the brightest stars in the entire night sky. It is easily visible to the naked eye from virtually any location on Earth where it rises above the horizon, and it can even be glimpsed in moderate light pollution. Observers will note its orange hue, which corresponds to a B-V color index of +1.239.
Đặc tính vật lý
| Phân Loại Quang Phổ | Class K — K-type (Orange) |
| Chỉ số màu (B−V) | 1,239 |
Quan sát
| Cấp Sao Biểu Kiến | -0.05 |
| Cấp Sao Tuyệt Đối | -0,31 |
| Khoảng Cách | 36.7 ly |
Vị trí
| Xích kinh | 14h 15,66m |
| Xích vĩ | 19° 10,94′ |
Related Chemistry
Explore the chemical elements connected to Sao Đại Giác on our sister site ChemFYI.
Metal-poor giant ([Fe/H] ≈ −0.5) — fewer iron-peak elements
Titanium lines visible in K-type giant spectra
Strong Ca II infrared triplet used to measure surface gravity
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