Copernicus
HR 3522 · HIP 43587 · 55 Cnc
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 5.96 mag
- Parallax
- 81.03 mas → about 40.3 light-years away
- Spectral type
- G8V
- Surface temperature
- 5,198 K
- Right ascension
- 133.1506°
- Declination
- 28.3314°
- Bayer designation
- 55 Cnc
- HIP number
- 43587
- IAU name adopted
- 2016-07-20
- Name language
- Latin
- Name origin (IAU)
- Nicolaus Copernicus or Mikolaj Kopernik (1473-1543) was a Polish astronomer who proposed the heliocentric model of the solar system in his book "De revolutionibus orbium coelestium".
Source:ESA Hipparcos Catalogue (ESA Gaia Archive) · checked 2026-11-03 ↗NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-03 ↗IAU Working Group on Star Names · checked 2026-11-02 ↗
Related
Constellation
In everyday life
- Light from this object takes about 40 years to reach Earth — the light you see tonight left around AD 1986 (official distance ÷ speed of light).
- At magnitude 6 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 28.3° — 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.