HD 18599 b
A confirmed exoplanet orbiting HD 18599.
Compared with Earth
- Size
- About 2.6 times Earth's width.
- Mass
- About 24 times Earth's mass.
- Year
- A year here lasts about 4.1 Earth days.
Planet
- Radius
- 2.6 × Earth
- Mass
- 24.1 × Earth
- Density
- 7.5 g/cm³
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 4.137 days
- Average distance from its star
- 0.048 AU
Star
- Host star
- HD 18599
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,145 K
- Radius
- 0.767 × Sun
- Mass
- 0.863 × Sun
- Age
- 0.4 billion years
System
- Distance from Earth
- 125.8 light-years (38.57 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2022
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.