HD 23472 d
A confirmed exoplanet orbiting HD 23472.
Compared with Earth
- Size
- About 75% of Earth's width.
- Mass
- About 55% of Earth's mass.
- Temperature
- About 636 °C (1,177 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 117 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 4 Earth days.
Planet
- Radius
- 0.75 × Earth
- Mass
- 0.55 × Earth
- Density
- 7.5 g/cm³
- Equilibrium temperature
- 909 K
- Starlight received
- 117 × Earth
- Orbital period
- 3.977 days
- Average distance from its star
- 0.04298 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
- 2022
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.