Algorab
HR 4757 · HIP 60965 · δ Crv
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 2.94 mag
- Parallax
- 37.55 mas → about 86.9 light-years away
- Spectral type
- B9.5V
- Right ascension
- 187.4661°
- Declination
- -16.5154°
- Designation
- HR 4757
- Bayer designation
- δ Crv
- HIP number
- 60965
- IAU name adopted
- 2016-07-20
- Name language
- Arabic
- Name origin (IAU)
- From an abbreviation of the name for the Arabic Almagest period janab al-ghurab, "the Raven's Wing," for γ Crv. Transferred to δ Crv in Early Modern times (both γ and δ were on the Raven's wings in the Almagest).
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 87 years to reach Earth — the light you see tonight left around AD 1939 (official distance ÷ speed of light).
- At magnitude 2.9 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination -16.5° — 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.