HD 224018 d
A confirmed exoplanet orbiting HD 224018.
Compared with Earth
- Size
- About 2.4 times Earth's width.
- Mass
- About 4.2 times Earth's mass.
- Temperature
- About 138 °C (280 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 138 Earth days.
Planet
- Radius
- 2.4 × Earth
- Mass
- 4.2 × Earth
- Density
- 1.7 g/cm³
- Equilibrium temperature
- 411 K
- Starlight received
- Unknown
- Orbital period
- 138.1 days
- Average distance from its star
- 0.53 AU
Star
- Host star
- HD 224018
- Spectral class
- G — sun-like
- Surface temperature
- 5,784 K
- Radius
- 1.147 × Sun
- Mass
- 1.013 × Sun
- Age
- 7 billion years
System
- Distance from Earth
- 344 light-years (105.5 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2025
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.