시리우스
9Alp CMa
시리우스 is a A-type (White) star located in the constellation Canis Major. It carries the designation 9Alp CMa.
At a distance of approximately 8.60 light-years, 시리우스 is one of the Sun's closest stellar neighbors. Light that we observe from 시리우스 today left the star roughly 8 years ago, making it a near neighbor in galactic terms.
시리우스 is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of -1.44, 시리우스 is one of the brightest stars in the entire night sky. It is easily visible to the naked eye from virtually any location on Earth where it rises above the horizon, and it can even be glimpsed in moderate light pollution. Observers will note its blue-white hue, which corresponds to a B-V color index of +0.009.
물리적 특성
| 분광형 | Class A — A-type (White) |
| 색지수 (B−V) | 0.009 |
관측
| 겉보기 등급 | -1.44 |
| 절대 등급 | 1.45 |
| 거리 | 8.6 ly |
| 별자리 | Canis Major |
위치
| 적경 | 6h 45.15m |
| 적위 | -16° 42.97′ |
Related Chemistry
Explore the chemical elements connected to 시리우스 on our sister site ChemFYI.
A-type stars show the strongest hydrogen Balmer absorption lines
Second most abundant element in Sirius's atmosphere
Detectable absorption lines in A-type stellar spectra
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