ดาวดวงแก้ว
16Alp Boo
ดาวดวงแก้ว is a K-type (Orange) star. It carries the designation 16Alp Boo.
ดาวดวงแก้ว lies approximately 36.7 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 36 years ago.
ดาวดวงแก้ว is classified as a spectral class K star (K-type (Orange)) on the Harvard spectral classification system.
With an apparent magnitude of -0.05, ดาวดวงแก้ว is one of the brightest stars in the entire night sky. It is easily visible to the naked eye from virtually any location on Earth where it rises above the horizon, and it can even be glimpsed in moderate light pollution. Observers will note its orange hue, which corresponds to a B-V color index of +1.239.
คุณสมบัติทางกายภาพ
| ประเภทสเปกตรัม | Class K — K-type (Orange) |
| ดัชนีสี (B−V) | 1.239 |
การสังเกต
| โชติมาตรปรากฏ | -0.05 |
| โชติมาตรสัมบูรณ์ | -0.31 |
| ระยะทาง | 36.7 ly |
ตำแหน่ง
| ไรต์แอสเซนชัน | 14h 15.66m |
| เดคลิเนชัน | 19° 10.94′ |
Related Chemistry
Explore the chemical elements connected to ดาวดวงแก้ว on our sister site ChemFYI.
Metal-poor giant ([Fe/H] ≈ −0.5) — fewer iron-peak elements
Titanium lines visible in K-type giant spectra
Strong Ca II infrared triplet used to measure surface gravity
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