Helvetios
HR 8729 · HIP 113357 · 51 Peg
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 5.46 mag
- Parallax
- 64.07 mas → about 50.9 light-years away
- Spectral type
- G5V
- Surface temperature
- 5,761 K
- Right ascension
- 344.3666°
- Declination
- 20.7688°
- Designation
- HR 8729
- Bayer designation
- 51 Peg
- HIP number
- 113357
- IAU name adopted
- 2015-12-15
- Name language
- Latin
- Name origin (IAU)
- Helvetios is the Latin for "the Helvetian" and refers to the Celtic tribe that lived in Switzerland during the Middle Ages.
Source:IAU Working Group on Star Names · checked 2026-11-02 ↗ESA Hipparcos Catalogue (ESA Gaia Archive) · checked 2026-11-03 ↗NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-03 ↗
Related
Constellation
Planets
In everyday life
- Light from this object takes about 51 years to reach Earth — the light you see tonight left around AD 1975 (official distance ÷ speed of light).
- At magnitude 5.5 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 20.8° — 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.