HD 23472 b
A confirmed exoplanet orbiting HD 23472.
Compared with Earth
- Size
- About 2 times Earth's width.
- Mass
- About 8.3 times Earth's mass.
- Temperature
- About 270 °C (518 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 16 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 18 Earth days.
Planet
- Radius
- 2 × Earth
- Mass
- 8.32 × Earth
- Density
- 6.15 g/cm³
- Equilibrium temperature
- 543 K
- Starlight received
- 16 × Earth
- Orbital period
- 17.67 days
- Average distance from its star
- 0.1162 AU
Star
- Host star
- HD 23472
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,684 K
- Radius
- 0.71 × Sun
- Mass
- 0.67 × Sun
- Age
- Unknown
System
- Distance from Earth
- 127.3 light-years (39.03 parsecs)
- Stars in system
- 1
- Known planets
- 5
Discovery
- Year
- 2019
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.