Tianjiu
HR 27 · HIP 841 · 22 And
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 5.04 mag
- Parallax
- 2.65 mas → about 1,230.8 light-years away
- Spectral type
- F2II
- Right ascension
- 2.5802°
- Declination
- 46.0723°
- Designation
- HR 27
- Bayer designation
- 22 And
- HIP number
- 841
- IAU name adopted
- 2026-10-15
- Name language
- Chinese
- Name origin (IAU)
- Tiān Jiù (天厩, Celestial Stable) is an ancient Chinese asterism. It is the heavenly counterpart to the imperial post-horse stations and cavalry stables on earth.
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 1,231 years to reach Earth — the light you see tonight left around AD 795 (official distance ÷ speed of light).
- At magnitude 5 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 46.1° — 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.