Achernar vs ดาวหัวใจสิงห์
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| Property | Achernar | ดาวหัวใจสิงห์ |
|---|---|---|
| ชื่อเรียก | Alp Eri | 32Alp Leo |
| กลุ่มดาว | N/A | Leo |
| ประเภทสเปกตรัม | Class B — B-type (Blue-White) | Class B — B-type (Blue-White) |
| โชติมาตรปรากฏ | +0.45 | +1.36 |
| โชติมาตรสัมบูรณ์ | -2.70 | -0.57 |
| ระยะทาง | 139 ly | 79.3 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 rapidly rotating hot stars that are noticeably oblate due to centrifugal force.
- ◆ Achernar's equatorial diameter is 56% larger than its polar diameter — the flattest bright star known.
- ◆ Achernar is a B-type star at ~14,500 K; Regulus is also B-type at ~12,460 K.
- ◆ Achernar is in Eridanus at 139 light-years; Regulus is in Leo at 79 light-years.
- ◆ Regulus sits almost exactly on the ecliptic and is frequently occulted by the Moon.