Беллатрикс vs Ригель
Real luminosity separates the pair by a factor of about 45: absolute magnitude −6.93 for Ригель, −2.80 for Беллатрикс. Spectroscopically Беллатрикс resolves as a B-type star in Orion and Ригель as a B-type star in Orion. To the unaided eye Ригель leads at magnitude +0.18 to +1.64, a gap of 1.46 worth about 3.8 times the light of Беллатрикс.
Property comparison
| Property | Беллатрикс | Ригель |
|---|---|---|
| Обозначение | 24Gam Ori | 19Bet Ori |
| Созвездие | Orion | Orion |
| Спектральный класс | Class B — B-type (Blue-White) | Class B — B-type (Blue-White) |
| Видимая звёздная величина | +1.64 | +0.18 |
| Абсолютная звёздная величина | -2.80 | -6.93 |
| Расстояние | 252 ly | 863 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: Беллатрикс · Ригель
Key differences
Key Differences
- ◆ Both are hot B-type stars in Orion, marking opposite corners of the hunter's torso.
- ◆ Rigel (Beta Orionis) is a blue supergiant at ~21 M☉; Bellatrix (Gamma Orionis) is a blue giant at ~8.4 M☉.
- ◆ Rigel is far more luminous at ~120,000 L☉ versus Bellatrix at ~6,400 L☉.
- ◆ Bellatrix is much closer at ~250 light-years; Rigel is also ~860 light-years distant.
- ◆ Bellatrix will eventually become an orange giant and finally a massive white dwarf, not a supernova.