K2-312 c
A confirmed exoplanet orbiting HD 80653.
Compared with Earth
- Mass
- About 1,681 times Earth's mass.
- Temperature
- About -44 °C (-47 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 2.4 Earth years.
Planet
- Radius
- Unknown
- Mass
- 1,681 × Earth
- Density
- Unknown
- Equilibrium temperature
- 229 K
- Starlight received
- Unknown
- Orbital period
- 871.3 days
- Average distance from its star
- 1.882 AU
Star
- Host star
- HD 80653
- Spectral class
- G — sun-like
- Surface temperature
- 5,959 K
- Radius
- 1.199 × Sun
- Mass
- 1.15 × Sun
- Age
- 3.3 billion years
System
- Distance from Earth
- 358.3 light-years (109.9 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2023
- Method
- Radial Velocity
- Facility
- Roque de los Muchachos Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.