Tania Borealis
HR 4033 · HIP 50372 · λ UMa
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 3.45 mag
- Parallax
- 23.72 mas → about 137.5 light-years away
- Spectral type
- A2IV
- Right ascension
- 154.2741°
- Declination
- 42.9144°
- Designation
- HR 4033
- Bayer designation
- λ UMa
- HIP number
- 50372
- IAU name adopted
- 2016-07-20
- Name language
- Arabic
- Name origin (IAU)
- Applied in recent times from their pre-Islamic Arabian name al-qafza al-thaniya, "the Second Leap", and the Latin distinctions of "northern" and "southern," respectively.
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 138 years to reach Earth — the light you see tonight left around AD 1888 (official distance ÷ speed of light).
- At magnitude 3.5 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 42.9° — 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.