Tiancang
HR 402 · HIP 6537 · θ Cet
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 3.59 mag
- Parallax
- 28.66 mas → about 113.8 light-years away
- Spectral type
- K0III
- Right ascension
- 21.0058°
- Declination
- -8.1833°
- Designation
- HR 402
- Bayer designation
- θ Cet
- HIP number
- 6537
- IAU name adopted
- 2026-10-15
- Name language
- Chinese
- Name origin (IAU)
- Tiān Cāng (天倉, Square Celestial Granary) is a Chinese asterism from the Shi school (~2000 years old).
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 114 years to reach Earth — the light you see tonight left around AD 1912 (official distance ÷ speed of light).
- At magnitude 3.6 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination -8.2° — 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.