Adhil

HR 390 · HIP 6411 · ξ And

👁️ Naked-eye

📋 A written introduction is coming — for now this page shows official values only.

Star

Apparent magnitude: 4.868 mag
Parallax: 15.21 mas → about 214.4 light-years away
Spectral type: K0III-IV
Right ascension: 20.5851°
Declination: 45.5288°
Designation: HR 390
Bayer designation: ξ And
HIP number: 6411
IAU name adopted: 2016-08-21
Name language: Arabic
Name origin (IAU): From the Arabic word al-dhail, "the hem of a robe or dress", used in the Arabic Almagest in describing 49 And and χ And, and transliterated in the Medieval Latin Almagest as adhil. This word was wrongly applied as a star name to ξ And in recent times.

Constellation

Light from this object takes about 214 years to reach Earth — the light you see tonight left around AD 1812 (official distance ÷ speed of light).
At magnitude 4.9 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
Declination 45.5° — 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.