ดาวปาริชาต vs ดาวบีเทลจุส
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| Property | ดาวปาริชาต | ดาวบีเทลจุส |
|---|---|---|
| ชื่อเรียก | 21Alp Sco | 58Alp Ori |
| กลุ่มดาว | Scorpius | Orion |
| ประเภทสเปกตรัม | Class M — M-type (Red) | Class M — M-type (Red) |
| โชติมาตรปรากฏ | +1.06 | +0.45 |
| โชติมาตรสัมบูรณ์ | -5.09 | -5.47 |
| ระยะทาง | 554 ly | 498 ly |
| มวล | N/A | N/A |
| รัศมี | N/A | N/A |
| อุณหภูมิ | N/A | N/A |
| ความส่องสว่าง | N/A | N/A |
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.