Leidian
HR 8717 · HIP 113186 · ρ Peg
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 4.9 mag
- Parallax
- 10.45 mas → about 312.1 light-years away
- Spectral type
- A1V
- Right ascension
- 343.807°
- Declination
- 8.8162°
- Designation
- HR 8717
- Bayer designation
- ρ Peg
- HIP number
- 113186
- IAU name adopted
- 2026-08-13
- Name language
- Chinese
- Name origin (IAU)
- Léi Diàn (Thunder and Lightning, 雷電) is a Chinese constellation that is so called because it vanishes as soon as it appears; it has no correlation with meteorology.
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 312 years to reach Earth — the light you see tonight left around AD 1714 (official distance ÷ speed of light).
- At magnitude 4.9 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 8.8° — 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.