Idigna
HR 463 · HIP 7535 · π Psc
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 5.535 mag
- Parallax
- 28.5 mas → about 114.4 light-years away
- Spectral type
- F0V
- Right ascension
- 24.2747°
- Declination
- 12.1418°
- Designation
- HR 463
- Bayer designation
- π Psc
- HIP number
- 7535
- IAU name adopted
- 2026-09-17
- Name language
- Sumerian
- Name origin (IAU)
- The Sumerian term for the Tigris river. Tigris has been honoured with two constellations, independently invented in early modern Europe and ancient Mesopotamia. WGSN picked a star in the ancient constellation.
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 114 years to reach Earth — the light you see tonight left around AD 1912 (official distance ÷ speed of light).
- At magnitude 5.5 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 12.1° — 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.