Alphecca
HR 5793 · HIP 76267 · α CrB
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 2.24 mag
- Parallax
- 43.46 mas → about 75 light-years away
- Spectral type
- A0V
- Right ascension
- 233.672°
- Declination
- 26.7147°
- Designation
- HR 5793
- Bayer designation
- α CrB
- HIP number
- 76267
- IAU name adopted
- 2016-07-20
- Name language
- Arabic
- Name origin (IAU)
- Applied in medieval times from the pre-Islamic Arabian asterism name al-fakka, for Corona Borealis. The Arabic name, from the root f-k-k, "to separate, break up, etc.," apparently refers to this asterism's shape: an incomplete circle.
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 75 years to reach Earth — the light you see tonight left around AD 1951 (official distance ÷ speed of light).
- At magnitude 2.2 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 26.7° — 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.