카노푸스 vs 시리우스
| 속성 | 카노푸스 | 시리우스 |
|---|---|---|
| 명칭 | Alp Car | 9Alp CMa |
| 별자리 | N/A | Canis Major |
| 분광형 | Class F — F-type (Yellow-White) | Class A — A-type (White) |
| 겉보기 등급 | -0.62 | -1.44 |
| 절대 등급 | -5.50 | 1.45 |
| 거리 | 309 ly | 8.6 ly |
| 질량 | N/A | N/A |
| 반지름 | N/A | N/A |
| 온도 | N/A | N/A |
| 광도 | N/A | N/A |
주요 차이점
- ◆ Sirius is the brightest star in the sky (mag −1.46); Canopus is the second-brightest (mag −0.74).
- ◆ Sirius is only 8.6 light-years away; Canopus is approximately 310 light-years distant.
- ◆ Canopus is a luminous F-type bright giant at ~10,700 L☉; Sirius is an A-type main-sequence star at 25.4 L☉.
- ◆ Canopus is used for spacecraft attitude control due to its exceptional brightness.
- ◆ Sirius has a white dwarf companion (Sirius B); Canopus is not known to have a stellar companion.