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.
คุณสมบัติทางกายภาพ
| ประเภทสเปกตรัม | B Class B — B-type (Blue-White) |
| ดัชนีสี (B−V) | 0.007 |
การสังเกต
| โชติมาตรปรากฏ | +5.29 |
| โชติมาตรสัมบูรณ์ | -14.71 |
| ระยะทาง | 326,156 ly |
| กลุ่มดาว | Sagittarius |
ตำแหน่ง
| ไรต์แอสเซนชัน | 18h 15.22m |
| เดคลิเนชัน | -20° 43.70′ |