15 Sgr
15 Sgr
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15 Sgr is a B-type (Blue-White) star located in the constellation Sagittarius. It carries the designation 15 Sgr.
15 Sgr is an extraordinarily remote star, situated approximately 326,156 light-years from Earth.
15 Sgr is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.29, 15 Sgr 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-white hue, which corresponds to a B-V color index of +0.007.
물리적 특성
| 분광형 | B Class B — B-type (Blue-White) |
| 색지수 (B−V) | 0.007 |
관측
| 겉보기 등급 | +5.29 |
| 절대 등급 | -14.71 |
| 거리 | 326,156 ly |
| 별자리 | Sagittarius |
위치
| 적경 | 18h 15.22m |
| 적위 | -20° 43.70′ |