TOI-1246 d

A confirmed exoplanet orbiting TOI-1246.

Compared with Earth

Size
About 3.4 times Earth's width.
Mass
About 5.4 times Earth's mass.
Temperature
About 315 °C (598 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 19 Earth days.

Planet

Radius
3.431 × Earth
Mass
5.4 × Earth
Density
0.73 g/cm³
Equilibrium temperature
587.8 K
Starlight received
Unknown
Orbital period
18.65 days
Average distance from its star
0.132 AU

Star

Host star
TOI-1246
Spectral class
K — orange dwarf
Surface temperature
5,213 K
Radius
0.8649 × Sun
Mass
0.8889 × Sun
Age
6.3 billion years

System

Distance from Earth
552.6 light-years (169.4 parsecs)
Stars in system
1
Known planets
4

Discovery

Year
2022
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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