Angetenar
HR 850 · HIP 13288 · τ2 Eri
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 4.77 mag
- Parallax
- 17.45 mas → about 186.9 light-years away
- Spectral type
- K0III
- Right ascension
- 42.7597°
- Declination
- -21.004°
- Designation
- HR 850
- Bayer designation
- τ2 Eri
- HIP number
- 13288
- IAU name adopted
- 2017-06-30
- Name language
- Arabic
- Name origin (IAU)
- derived from the Arabic Al Ḥināyat an-Nahr, 'the Bend in the River', based on Arabic Almagest translations
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 187 years to reach Earth — the light you see tonight left around AD 1839 (official distance ÷ speed of light).
- At magnitude 4.8 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination -21° — 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.