Alnitak
* zet Ori · HIP 26727 · ζ Ori
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 1.77 mag
- Parallax
- 4.43 mas → about 736.2 light-years away
- Spectral type
- O9.5Ib SB
- Right ascension
- 85.1897°
- Declination
- -1.9426°
- Designation
- * zet Ori
- Bayer designation
- ζ Ori
- HIP number
- 26727
- IAU name adopted
- 2016-07-20
- Name language
- Arabic
- Name origin (IAU)
- Applied in recent times from an abbreviation of the pre-Islamic Arabian asterism name nitaq al-jauza, "the Belt (or Girdle) of al-jauza," for δ, ε, and ζ Ori.
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 736 years to reach Earth — the light you see tonight left around AD 1290 (official distance ÷ speed of light).
- At magnitude 1.8 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination -1.9° — 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.