Антарес vs Бетельгейзе
Sky brightness gives Бетельгейзе a 0.61-magnitude edge, +0.45 to +1.06. Both lie at a comparable distance from the Sun — 554 light-years for Антарес and 498 for Бетельгейзе. Spectroscopically Антарес resolves as an M-type star in Scorpius and Бетельгейзе as an M-type star in Orion. Corrected for distance, Бетельгейзе outproduces Антарес by some 1.4 times, absolute magnitudes −5.47 and −5.09.
Property comparison
| Property | Антарес | Бетельгейзе |
|---|---|---|
| Обозначение | 21Alp Sco | 58Alp Ori |
| Созвездие | Scorpius | Orion |
| Спектральный класс | Class M — M-type (Red) | Class M — M-type (Red) |
| Видимая звёздная величина | +1.06 | +0.45 |
| Абсолютная звёздная величина | -5.09 | -5.47 |
| Расстояние | 554 ly | 498 ly |
| Масса | N/A | N/A |
| Радиус | N/A | N/A |
| Температура | N/A | N/A |
| Светимость | N/A | N/A |
Full data for each star: Антарес · Бетельгейзе
Key differences
Key Differences
- ◆ Both are famous red supergiants and iconic supernova candidates visible to the naked eye.
- ◆ Betelgeuse is significantly larger at ~887 R☉; Antares has a radius of ~680 R☉.
- ◆ Antares is in Scorpius and has long been compared to Mars due to its red colour; Betelgeuse marks Orion's shoulder.
- ◆ Antares is about 604 light-years away; Betelgeuse is approximately 700 light-years distant.
- ◆ Both show irregular variability and dramatic mass-loss through powerful stellar winds.