HD 22946 d
A confirmed exoplanet orbiting HD 22946.
Compared with Earth
- Size
- About 2.6 times Earth's width.
- Mass
- About 27 times Earth's mass.
- Temperature
- About 273 °C (523 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 19 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 47 Earth days.
Planet
- Radius
- 2.607 × Earth
- Mass
- 26.57 × Earth
- Density
- 10.8 g/cm³
- Equilibrium temperature
- 546 K
- Starlight received
- 18.56 × Earth
- Orbital period
- 47.42 days
- Average distance from its star
- 0.2958 AU
Star
- Host star
- HD 22946
- Spectral class
- F — yellow-white
- Surface temperature
- 6,169 K
- Radius
- 1.117 × Sun
- Mass
- 1.098 × Sun
- Age
- 2.5 billion years
System
- Distance from Earth
- 204.8 light-years (62.78 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2023
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.