Alcyone
HR 1165 · HIP 17702 · η Tau
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 2.87 mag
- Parallax
- 8.09 mas → about 403.2 light-years away
- Spectral type
- B7III
- Right ascension
- 56.8712°
- Declination
- 24.1051°
- Designation
- HR 1165
- Bayer designation
- η Tau
- HIP number
- 17702
- IAU name adopted
- 2016-06-30
- Name language
- Greek
- Name origin (IAU)
- These names were individually applied in Early Modern times from a family of characters in Greek mythology: Atlas, Pleione and their seven daughters, the Pleiades.
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 403 years to reach Earth — the light you see tonight left around AD 1623 (official distance ÷ speed of light).
- At magnitude 2.9 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 24.1° — 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.