Makropulos
XO-5 b
IAU name «Makropulos» — Czech Republic, 2019 contest
📋 A written introduction is coming — for now this page shows official values only.
Planet
- Host star
- XO-5
- Distance from Earth
- 276.211 pc (≈ 900.9 light-years)
- NASA planet type
- Gas Giant
- Radius (Earth = 1)
- 12.78
- Mass (Earth = 1)
- 378.2
- Orbital period
- 4.1878 days
- Semi-major axis
- 0.0515 AU
- Eccentricity
- 0
- Equilibrium temperature
- 1,230 K
- Discovery method
- Transit
- Discovery year
- 2,008
- Discovery facility
- XO
- Host spectral type
- G8 V
- Host temperature
- 5,430 K
- Host radius (Sun = 1)
- 1.13
- Host mass (Sun = 1)
- 1.04
- Host brightness
- 12.198 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 901 years to reach Earth — the light you see tonight left around AD 1125 (official distance ÷ speed of light).
- Its radius is about 13 times Earth's (NASA Exoplanet Archive).
- One orbit takes about 4.2 Earth days — that is this planet's year.
Worked out from this object's official values.