TOI-3856 b

A confirmed exoplanet orbiting TOI-3856.

Compared with Earth

Size
About 14 times Earth's width.
Mass
About 172 times Earth's mass.
Temperature
About 1,271 °C (2,320 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 949 times the starlight Earth gets from the Sun.
Year
A year here lasts about 2 Earth days.

Planet

Radius
13.6 × Earth
Mass
171.6 × Earth
Density
0.371 g/cm³
Equilibrium temperature
1,544 K
Starlight received
949 × Earth
Orbital period
2.044 days
Average distance from its star
0.0325 AU

Star

Host star
TOI-3856
Spectral class
G — sun-like
Surface temperature
5,622 K
Radius
1.055 × Sun
Mass
1.096 × Sun
Age
2.6 billion years

System

Distance from Earth
1,026 light-years (314.4 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2025
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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