COCONUTS-2 b

A confirmed exoplanet orbiting COCONUTS-2 A.

Compared with Earth

Size
About 13 times Earth's width.
Mass
About 2,384 times Earth's mass.
Temperature
About 220 °C (428 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.

Planet

Radius
12.58 × Earth
Mass
2,384 × Earth
Density
Unknown
Equilibrium temperature
493 K
Starlight received
Unknown
Orbital period
Unknown
Average distance from its star
Unknown

Star

Host star
COCONUTS-2 A
Spectral class
M — red dwarf
Surface temperature
3,552 K
Radius
0.366 × Sun
Mass
0.4 × Sun
Age
0.414 billion years

System

Distance from Earth
35.51 light-years (10.89 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2021
Method
Imaging
Facility
NASA Infrared Telescope Facility (IRTF)

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