TOI-5646 b

A confirmed exoplanet orbiting TOI-5646.

Compared with Earth

Size
About 6.6 times Earth's width.
Mass
About 46 times Earth's mass.
Temperature
About 1,662 °C (3,023 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 2,340 times the starlight Earth gets from the Sun.
Year
A year here lasts about 2.4 Earth days.

Planet

Radius
6.61 × Earth
Mass
45.93 × Earth
Density
0.87 g/cm³
Equilibrium temperature
1,935 K
Starlight received
2,340 × Earth
Orbital period
2.428 days
Average distance from its star
0.0427 AU

Star

Host star
TOI-5646
Spectral class
F — yellow-white
Surface temperature
6,136 K
Radius
1.837 × Sun
Mass
1.418 × Sun
Age
2.82 billion years

System

Distance from Earth
1,400 light-years (429.2 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2026
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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