Mothallah
HR 544 · HIP 8796 · α Tri
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 3.42 mag
- Parallax
- 51.5 mas → about 63.3 light-years away
- Spectral type
- F6IV
- Right ascension
- 28.2704°
- Declination
- 29.5788°
- Designation
- HR 544
- Bayer designation
- α Tri
- HIP number
- 8796
- IAU name adopted
- 2016-08-21
- Name language
- Arabic
- Name origin (IAU)
- Applied in recent times from the Arabic constellation name al-muthallath, "the Triangle," for Triangulum.
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 63 years to reach Earth — the light you see tonight left around AD 1963 (official distance ÷ speed of light).
- At magnitude 3.4 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 29.6° — 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.