KPS-1 b

A confirmed exoplanet orbiting KPS-1.

Compared with Earth

Size
About 12 times Earth's width.
Mass
About 346 times Earth's mass.
Temperature
About 1,186 °C (2,167 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 729 times the starlight Earth gets from the Sun.
Year
A year here lasts about 1.7 Earth days.

Planet

Radius
11.55 × Earth
Mass
346.4 × Earth
Density
1.31 g/cm³
Equilibrium temperature
1,459 K
Starlight received
729 × Earth
Orbital period
1.706 days
Average distance from its star
0.0269 AU

Star

Host star
KPS-1
Spectral class
K — orange dwarf
Surface temperature
5,165 K
Radius
0.907 × Sun
Mass
0.892 × Sun
Age
Unknown

System

Distance from Earth
856.8 light-years (262.7 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2018
Method
Transit
Facility
Acton Sky Portal Observatory

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