Sao Barnard vs Cận Tinh
In the sky the advantage is Sao Barnard's, +9.54 to +11.01 and some 3.9 times the light. Only 4.23 light-years separate the Sun from Cận Tinh; Sao Barnard sits 1.4 times further out at 5.95. Set side by side at equal distance the ranking changes — absolute magnitudes of +13.24 and +15.45 leave Sao Barnard roughly 7.7 times the more luminous. By spectral type the pair divides into a star for Sao Barnard and an M-type star in Centaurus for Cận Tinh.
Property comparison
| Property | Sao Barnard | Cận Tinh |
|---|---|---|
| Ký Hiệu | N/A | N/A |
| Chòm Sao | N/A | Centaurus |
| Phân Loại Quang Phổ | N/A | Class M — M-type (Red) |
| Cấp Sao Biểu Kiến | +9.54 | +11.01 |
| Cấp Sao Tuyệt Đối | 13.24 | 15.45 |
| Khoảng Cách | 6.0 ly | 4.2 ly |
| Khối Lượng | N/A | N/A |
| Bán Kính | N/A | N/A |
| Nhiệt Độ | N/A | N/A |
| Độ Sáng | N/A | N/A |
Full data for each star: Sao Barnard · Cận Tinh
Key differences
Key Differences
- ◆ Both are nearby red dwarf stars invisible to the naked eye.
- ◆ Barnard's Star has the highest proper motion of any known star (10.3 arcseconds per year).
- ◆ Proxima Centauri is closer at 4.24 light-years; Barnard's Star is 5.96 light-years away.
- ◆ Proxima Centauri has confirmed exoplanets in the habitable zone; Barnard's Star has only a sub-Earth candidate.
- ◆ Barnard's Star will make its closest approach to the Sun in about 10,000 years.