KOINTREAU-1 b

A confirmed exoplanet orbiting XEST 17-036.

Compared with Earth

Mass
About 3,369 times Earth's mass.

Planet

Radius
Unknown
Mass
3,369 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
Unknown
Average distance from its star
690 AU

Star

Host star
XEST 17-036
Spectral class
M — red dwarf
Surface temperature
3,551 K
Radius
Unknown
Mass
0.26 × Sun
Age
0.0033 billion years

System

Distance from Earth
517.3 light-years (158.6 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2026
Method
Imaging
Facility
W. M. Keck Observatory

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