CT Cha b

A confirmed exoplanet orbiting CT Cha.

Compared with Earth

Size
About 25 times Earth's width.
Mass
About 5,403 times Earth's mass.
Temperature
About 2,327 °C (4,220 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.

Planet

Radius
24.66 × Earth
Mass
5,403 × Earth
Density
Unknown
Equilibrium temperature
2,600 K
Starlight received
Unknown
Orbital period
Unknown
Average distance from its star
440 AU

Star

Host star
CT Cha
Spectral class
Unknown
Surface temperature
Unknown
Radius
Unknown
Mass
Unknown
Age
0.002 billion years

System

Distance from Earth
622 light-years (190.7 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2007
Method
Imaging
Facility
Paranal Observatory

Data from the NASA Exoplanet Archive, synced October 14, 2026.