HD 221420 b
A confirmed exoplanet orbiting HD 221420.
Compared with Earth
- Mass
- About 7,278 times Earth's mass.
- Year
- A year here lasts about 28 Earth years.
Planet
- Radius
- Unknown
- Mass
- 7,278 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 10,090 days
- Average distance from its star
- 10.15 AU
Star
- Host star
- HD 221420
- Spectral class
- G — sun-like
- Surface temperature
- 5,847 K
- Radius
- 1.947 × Sun
- Mass
- 1.351 × Sun
- Age
- 3.65 billion years
System
- Distance from Earth
- 101.6 light-years (31.14 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2019
- Method
- Radial Velocity
- Facility
- Anglo-Australian Telescope
Data from the NASA Exoplanet Archive, synced October 14, 2026.