랄랑드 21185
랄랑드 21185 is a M-type (Red) star located in the constellation Ursa Major.
At a distance of approximately 8.31 light-years, 랄랑드 21185 is one of the Sun's closest stellar neighbors. Light that we observe from 랄랑드 21185 today left the star roughly 8 years ago, making it a near neighbor in galactic terms.
랄랑드 21185 is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
랄랑드 21185 has an apparent magnitude of +7.49, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its red hue, which corresponds to a B-V color index of +1.502.
물리적 특성
| 분광형 | Class M — M-type (Red) |
| 색지수 (B−V) | 1.502 |
관측
| 겉보기 등급 | +7.49 |
| 절대 등급 | 10.46 |
| 거리 | 8.3 ly |
| 별자리 | Ursa Major |
위치
| 적경 | 11h 3.34m |
| 적위 | 35° 58.19′ |
자주 묻는 질문
What type of star is 랄랑드 21185?
랄랑드 21185 is a Class M — M-type (Red) star.
How far is 랄랑드 21185 from Earth?
랄랑드 21185 is approximately 8.3 light-years from Earth.
Can you see 랄랑드 21185 with the naked eye?
With an apparent magnitude of 7.49, 랄랑드 21185 is not visible to the naked eye.
What constellation is 랄랑드 21185 in?
랄랑드 21185 is located in the constellation Ursa Major.