Tusizuo
HR 6895 · HIP 90139 · 109 Her
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 3.84 mag
- Parallax
- 27.42 mas → about 118.9 light-years away
- Spectral type
- K2III
- Right ascension
- 275.9245°
- Declination
- 21.7698°
- Designation
- HR 6895
- Bayer designation
- 109 Her
- HIP number
- 90139
- IAU name adopted
- 2025-06-17
- Name language
- Chinese
- Name origin (IAU)
- Tú Sì (屠肆, "Butcher's Shop") is a Chinese asterism consisting of two stars, established by the Wuxian (巫咸) school during the Han dynasty. As "Tusi" could be confused with other celestial bodies named Tusi after two Persian astronomers (asteroid (10269) Tusi and asteroid (7058) Al-Tusi), WGSN chose to add a determinative here. The chosen star 95 Her is "the left one in Tusi", in Chinese "Tusizuo", so WGSN adopts this name.
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 119 years to reach Earth — the light you see tonight left around AD 1907 (official distance ÷ speed of light).
- At magnitude 3.8 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 21.8° — 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.