Tianyi
HR 4863 · HIP 62423 · 7 Dra
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 5.423 mag
- Parallax
- 4.4 mas → about 741.3 light-years away
- Spectral type
- K5III
- Right ascension
- 191.8931°
- Declination
- 66.7903°
- Designation
- HR 4863
- Bayer designation
- 7 Dra
- HIP number
- 62423
- IAU name adopted
- 2017-06-30
- Name language
- Chinese
- Name origin (IAU)
- Chinese single star asterism: heavenly unity
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 741 years to reach Earth — the light you see tonight left around AD 1285 (official distance ÷ speed of light).
- At magnitude 5.4 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 66.8° — from Seoul (37.6° N) it never sets and circles the northern sky all night.
Worked out from this object's official values.