Звезда Барнарда vs Rigil Kentaurus
| Свойство | Звезда Барнарда | Rigil Kentaurus |
|---|---|---|
| Обозначение | N/A | Alp1Cen |
| Созвездие | N/A | Centaurus |
| Спектральный класс | N/A | Class G — G-type (Yellow) |
| Видимая звёздная величина | +9.54 | -0.01 |
| Абсолютная звёздная величина | 13,24 | 4,38 |
| Расстояние | 6.0 ly | 4.3 ly |
| Масса | N/A | N/A |
| Радиус | N/A | N/A |
| Температура | N/A | N/A |
| Светимость | N/A | N/A |
Ключевые различия
- ◆ Both are among the very closest stars to the Sun, though radically different in character.
- ◆ Rigil Kentaurus (Alpha Cen A) is a G-type solar twin at 4.37 ly; Barnard's Star is an M-type red dwarf at 5.96 ly.
- ◆ Barnard's Star has the largest proper motion in the sky (10.3 arcsec/yr); Rigil Kentaurus also has significant proper motion.
- ◆ Rigil Kentaurus is far brighter and more massive than Barnard's Star.
- ◆ Barnard's Star is the second-closest star system; Alpha Centauri (including Proxima) is the closest.