Miaplacidus
HR 3685 · HIP 45238 · β Car
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 1.69 mag
- Parallax
- 28.82 mas → about 113.2 light-years away
- Spectral type
- A2IV
- Right ascension
- 138.2999°
- Declination
- -69.7172°
- Designation
- HR 3685
- Bayer designation
- β Car
- HIP number
- 45238
- IAU name adopted
- 2016-07-20
- Name language
- Latin
- Name origin (IAU)
- Applied in recent times, and of unknown astronomical significance. The first element, Mia-, is unexplained. The second element is the Latin adjective placidus, meaning "calm, gentle" (here in the masculine form).
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 113 years to reach Earth — the light you see tonight left around AD 1913 (official distance ÷ speed of light).
- At magnitude 1.7 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination -69.7° — it never rises in Seoul (37.6° N); you need to be farther south to see it.
Worked out from this object's official values.