XO-7 b
A confirmed exoplanet orbiting XO-7.
Compared with Earth
- Size
- About 15 times Earth's width.
- Mass
- About 225 times Earth's mass.
- Temperature
- About 1,470 °C (2,678 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 1,540 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 2.9 Earth days.
Planet
- Radius
- 15.39 × Earth
- Mass
- 225.3 × Earth
- Density
- 0.34 g/cm³
- Equilibrium temperature
- 1,743 K
- Starlight received
- 1,540 × Earth
- Orbital period
- 2.864 days
- Average distance from its star
- 0.04421 AU
Star
- Host star
- XO-7
- Spectral class
- F — yellow-white
- Surface temperature
- 6,250 K
- Radius
- 1.48 × Sun
- Mass
- 1.405 × Sun
- Age
- 1.18 billion years
System
- Distance from Earth
- 763.7 light-years (234.1 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2019
- Method
- Transit
- Facility
- XO
Data from the NASA Exoplanet Archive, synced October 14, 2026.