Antares vs Kaus Australis
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| Property | Antares | Kaus Australis |
|---|---|---|
| Ký Hiệu | 21Alp Sco | 20Eps Sgr |
| Chòm Sao | Scorpius | Sagittarius |
| Phân Loại Quang Phổ | Class M — M-type (Red) | Class B — B-type (Blue-White) |
| Cấp Sao Biểu Kiến | +1.06 | +1.79 |
| Cấp Sao Tuyệt Đối | -5.09 | -1.42 |
| Khoảng Cách | 554 ly | 143 ly |
| Khối Lượng | N/A | N/A |
| Bán Kính | N/A | N/A |
| Nhiệt Độ | N/A | N/A |
| Độ Sáng | N/A | N/A |
Key Differences
- ◆ Both are among the brightest stars in the summer southern sky from mid-latitudes.
- ◆ Antares is a famous red supergiant; Kaus Australis is a blue-white B-type giant — very different spectral types.
- ◆ Antares is the heart of Scorpius; Kaus Australis is the brightest star in Sagittarius, marking the Teapot.
- ◆ Both are visible on the same summer evenings, making them easy to compare directly in the sky.
- ◆ Antares is far more luminous at ~75,900 L☉ versus Kaus Australis at ~363 L☉.