Matar
HR 8650 · HIP 112158 · η Peg
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Star
- Apparent magnitude
- 2.95 mag
- Parallax
- 15.22 mas → about 214.3 light-years away
- Spectral type
- G2II-III..
- Right ascension
- 340.7505°
- Declination
- 30.2212°
- Designation
- HR 8650
- Bayer designation
- η Peg
- HIP number
- 112158
- IAU name adopted
- 2016-08-21
- Name language
- Arabic
- Name origin (IAU)
- Applied in recent times from an abbreviation of the pre-Islamic Arabian name sa'd matar for η and o Peg. Its meaning is unknown. matar has been translated as "rain," and as a common noun in Arabic, al-matar does mean "the rain." However, lack of the definitive article al- for the star points to a use of the word in a sense different from the common noun.
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 214 years to reach Earth — the light you see tonight left around AD 1812 (official distance ÷ speed of light).
- At magnitude 3 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- Declination 30.2° — 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.