Alkaid
HR 5191 · HIP 67301 · η UMa
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 1.86 mag
- Parallax
- 31.38 mas → about 103.9 light-years away
- Spectral type
- B3V SB
- Right ascension
- 206.8852°
- Declination
- 49.3133°
- Designation
- HR 5191
- Bayer designation
- η UMa
- HIP number
- 67301
- IAU name adopted
- 2016-06-30
- Name language
- Arabic
- Name origin (IAU)
- Applied with various spellings since medieval times, from its pre-Islamic Arabian name al-qa'id, "the Leader" (probably as leader of the Daughters of the Bier).
Source:IAU Working Group on Star Names · checked 2026-11-02 ↗ESA Hipparcos Catalogue (ESA Gaia Archive) · checked 2026-11-03 ↗
Related
Constellation
In everyday life
- Light from this object takes about 104 years to reach Earth — the light you see tonight left around AD 1922 (official distance ÷ speed of light).
- At magnitude 1.9 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 49.3° — it rises above the horizon in Seoul (37.6° N), so it is visible from Korea in the right season.
Worked out from this object's official values.