CD Cet b
A confirmed exoplanet orbiting CD Cet.
Compared with Earth
- Mass
- About 4 times Earth's mass.
- Temperature
- About 191 °C (376 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 8.6 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 2.3 Earth days.
Planet
- Radius
- Unknown
- Mass
- 3.95 × Earth
- Density
- Unknown
- Equilibrium temperature
- 464 K
- Starlight received
- 8.6 × Earth
- Orbital period
- 2.291 days
- Average distance from its star
- 0.0185 AU
Star
- Host star
- CD Cet
- Spectral class
- M — red dwarf
- Surface temperature
- 3,130 K
- Radius
- 0.175 × Sun
- Mass
- 0.161 × Sun
- Age
- 3 billion years
System
- Distance from Earth
- 28.07 light-years (8.607 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2020
- Method
- Radial Velocity
- Facility
- Calar Alto Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.