HD 28471 d
A confirmed exoplanet orbiting HD 28471.
Compared with Earth
- Mass
- About 4.9 times Earth's mass.
- Temperature
- About 672 °C (1,241 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 12 Earth days.
Planet
- Radius
- Unknown
- Mass
- 4.91 × Earth
- Density
- Unknown
- Equilibrium temperature
- 945 K
- Starlight received
- Unknown
- Orbital period
- 11.68 days
- Average distance from its star
- 0.1 AU
Star
- Host star
- HD 28471
- Spectral class
- G — sun-like
- Surface temperature
- 5,766 K
- Radius
- 1.08 × Sun
- Mass
- 0.98 × Sun
- Age
- 6.56 billion years
System
- Distance from Earth
- 142.4 light-years (43.65 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2025
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.