Castula
HR 265 · HIP 4422 · υ2 Cas
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 4.622 mag
- Parallax
- 16.32 mas → about 199.9 light-years away
- Spectral type
- G8III-IV
- Right ascension
- 14.1663°
- Declination
- 59.1811°
- Designation
- HR 265
- Bayer designation
- υ2 Cas
- HIP number
- 4422
- IAU name adopted
- 2017-09-05
- Name language
- Latin
- Name origin (IAU)
- Castula is Latin for a type of woman's tunic. Bayer (1603, Uranometria) attributes the name "castulum" to Nonius (Portugese scholar Pedro Nunez, 1502-1578), with the Greek alias ταινίαν for a ribbon.
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 200 years to reach Earth — the light you see tonight left around AD 1826 (official distance ÷ speed of light).
- At magnitude 4.6 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 59.2° — from Seoul (37.6° N) it never sets and circles the northern sky all night.
Worked out from this object's official values.