21 Aql
21 Aql
21 Aql is a B-type (Blue-White) star located in the constellation Aquila. It carries the designation 21 Aql.
Located approximately 710.6 light-years from Earth, 21 Aql resides within the broader disk of our Milky Way galaxy.
21 Aql is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.14, 21 Aql 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 -0.071.
Đặc tính vật lý
| Phân Loại Quang Phổ | Class B — B-type (Blue-White) |
| Chỉ số màu (B−V) | -0,071 |
Quan sát
| Cấp Sao Biểu Kiến | +5.14 |
| Cấp Sao Tuyệt Đối | -1,55 |
| Khoảng Cách | 711 ly |
| Chòm Sao | Aquila |
Vị trí
| Xích kinh | 19h 13,71m |
| Xích vĩ | 2° 17,62′ |
Câu hỏi thường gặp
What type of star is 21 Aql?
21 Aql is a Class B — B-type (Blue-White) star.
How far is 21 Aql from Earth?
21 Aql is approximately 710.6 light-years from Earth.
Can you see 21 Aql with the naked eye?
With an apparent magnitude of 5.14, 21 Aql is visible to the naked eye.
What constellation is 21 Aql in?
21 Aql is located in the constellation Aquila.