Alruba
HR 6618 · HIP 86782
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 5.76 mag
- Parallax
- 6.12 mas → about 532.9 light-years away
- Spectral type
- A2V
- Right ascension
- 265.9965°
- Declination
- 53.8017°
- Designation
- HR 6618
- HIP number
- 86782
- IAU name adopted
- 2018-06-01
- Name language
- Arabic
- Name origin (IAU)
- Arabic الربع Al Rubaʽ translates "the foal" and specifically refers to a young camel born in the spring. The name was considered traditional by WGSN in 2018 as it is listed in Allen (1899).
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 533 years to reach Earth — the light you see tonight left around AD 1493 (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 53.8° — from Seoul (37.6° N) it never sets and circles the northern sky all night.
Worked out from this object's official values.