HAT-P-23 b
A confirmed exoplanet orbiting HAT-P-23.
Compared with Earth
- Size
- About 15 times Earth's width.
- Mass
- About 664 times Earth's mass.
- Temperature
- About 1,783 °C (3,241 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 1.2 Earth days.
Planet
- Radius
- 15.33 × Earth
- Mass
- 664.2 × Earth
- Density
- 1.01 g/cm³
- Equilibrium temperature
- 2,056 K
- Starlight received
- Unknown
- Orbital period
- 1.213 days
- Average distance from its star
- 0.0232 AU
Star
- Host star
- HAT-P-23
- Spectral class
- G — sun-like
- Surface temperature
- 5,905 K
- Radius
- 1.203 × Sun
- Mass
- 1.13 × Sun
- Age
- 4 billion years
System
- Distance from Earth
- 1,190 light-years (364.8 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2010
- Method
- Transit
- Facility
- HATNet
Data from the NASA Exoplanet Archive, synced October 14, 2026.