Tianyue
HR 6700 · HIP 88116 · 4 Sgr
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 4.724 mag
- Parallax
- 7.85 mas → about 415.5 light-years away
- Spectral type
- B9V
- Right ascension
- 269.9482°
- Declination
- -23.8161°
- Designation
- HR 6700
- Bayer designation
- 4 Sgr
- HIP number
- 88116
- IAU name adopted
- 2026-08-13
- Name language
- Chinese
- Name origin (IAU)
- Tiān Yuè (天籥, Celestial Keyhole) is a Chinese constellation believed to govern the functions of opening and closing.
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 415 years to reach Earth — the light you see tonight left around AD 1611 (official distance ÷ speed of light).
- At magnitude 4.7 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination -23.8° — 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.