Alaybasan

HR 622 · HIP 10064 · β Tri

👁️ Naked-eye

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

Star

Apparent magnitude: 3 mag
Parallax: 25.71 mas → about 126.9 light-years away
Spectral type: A5III
Right ascension: 32.3859°
Declination: 34.9873°
Designation: HR 622
Bayer designation: β Tri
HIP number: 10064
IAU name adopted: 2025-11-07
Name language: Arabic
Name origin (IAU): Al-Aybasān (الأيبسان), the Two Joints (of bones), is an Indigenous Arabian asterism. Name variants are Al-Anīsān (الأنيسان) and Al-Baysan. The later spelling variant al-Anīsān that originated from a mistake changed the meaning, as it translates The Two Friends. WGSN adopts a spelling variant without hyphen: "Alaybasan" is the name for β Tri

Constellation

Light from this object takes about 127 years to reach Earth — the light you see tonight left around AD 1899 (official distance ÷ speed of light).
At magnitude 3 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
Declination 35° — 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.