Aladfar
20Eta Lyr
Aladfar is a B-type (Blue-White) star located in the constellation Lyra. It carries the designation 20Eta Lyr.
At a distance of roughly 1,388 light-years, Aladfar is a distant star lying deep within the Milky Way galaxy.
Aladfar is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.43, Aladfar sits near the limit of naked-eye visibility. It can be glimpsed without optical aid under dark skies, but binoculars will make observation much easier. Observers will note its blue hue, which corresponds to a B-V color index of -0.150.
물리적 특성
| 분광형 | Class B — B-type (Blue-White) |
| 색지수 (B−V) | -0.150 |
관측
| 겉보기 등급 | +4.43 |
| 절대 등급 | -3.72 |
| 거리 | 1,388 ly |
| 별자리 | Lyra |
위치
| 적경 | 19h 13.76m |
| 적위 | 39° 8.76′ |
자주 묻는 질문
What type of star is Aladfar?
Aladfar is a Class B — B-type (Blue-White) star.
How far is Aladfar from Earth?
Aladfar is approximately 1,387.9 light-years from Earth.
Can you see Aladfar with the naked eye?
With an apparent magnitude of 4.43, Aladfar is visible to the naked eye.
What constellation is Aladfar in?
Aladfar is located in the constellation Lyra.