Asterope
HR 1151 · HIP 17579 · 21 Tau
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 5.76 mag
- Parallax
- 8.77 mas → about 371.9 light-years away
- Spectral type
- B8V
- Right ascension
- 56.477°
- Declination
- 24.5545°
- Designation
- HR 1151
- Bayer designation
- 21 Tau
- HIP number
- 17579
- IAU name adopted
- 2016-08-21
- 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 372 years to reach Earth — the light you see tonight left around AD 1654 (official distance ÷ speed of light).
- At magnitude 5.8 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 24.6° — 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.