Pirx
BD+14 4559 b
IAU name «Pirx» — Poland, 2019 contest
📋 A written introduction is coming — for now this page shows official values only.
Planet
- Host star
- BD+14 4559
- Distance from Earth
- 49.352 pc (≈ 161 light-years)
- NASA planet type
- Gas Giant
- Radius (Earth = 1)
- 13.8
- Mass (Earth = 1)
- 330.5432
- Orbital period
- 268.94 days
- Semi-major axis
- 0.78 AU
- Eccentricity
- 0.29
- Equilibrium temperature
- 246.28 K
- Discovery method
- Radial Velocity
- Discovery year
- 2,009
- Discovery facility
- McDonald Observatory
- Host spectral type
- K2 V
- Host temperature
- 4,864 K
- Host radius (Sun = 1)
- 0.86
- Host mass (Sun = 1)
- 0.49
- Host brightness
- 9.78 mag
Source:NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-02 ↗NASA Science · checked 2026-11-02 ↗NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-02 ↗
Related
Host star
In everyday life
- Light from this object takes about 161 years to reach Earth — the light you see tonight left around AD 1865 (official distance ÷ speed of light).
- Its radius is about 14 times Earth's (NASA Exoplanet Archive).
- One orbit takes about 268.9 Earth days — that is this planet's year.
Worked out from this object's official values.