19 Dra
19 Dra
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19 Dra is a F-type (Yellow-White) star. It carries the designation 19 Dra.
19 Dra lies approximately 49.8 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 49 years ago.
19 Dra is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.88, 19 Dra 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 white hue, which corresponds to a B-V color index of +0.481.
คุณสมบัติทางกายภาพ
| ประเภทสเปกตรัม | F Class F — F-type (Yellow-White) |
| ดัชนีสี (B−V) | 0.481 |
การสังเกต
| โชติมาตรปรากฏ | +4.88 |
| โชติมาตรสัมบูรณ์ | 3.96 |
| ระยะทาง | 49.8 ly |
ตำแหน่ง
| ไรต์แอสเซนชัน | 16h 56.02m |
| เดคลิเนชัน | 65° 8.09′ |