TOI-1685 b

A confirmed exoplanet orbiting TOI-1685.

Compared with Earth

Size
About 1.4 times Earth's width.
Mass
About 3.1 times Earth's mass.
Temperature
About 727 °C (1,340 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 213 times the starlight Earth gets from the Sun.
Year
A year here lasts about 16 hours.

Planet

Radius
1.421 × Earth
Mass
3.07 × Earth
Density
Unknown
Equilibrium temperature
1,000 K
Starlight received
213 × Earth
Orbital period
0.6691 days
Average distance from its star
0.01164 AU

Star

Host star
TOI-1685
Spectral class
M — red dwarf
Surface temperature
3,470 K
Radius
0.462 × Sun
Mass
0.466 × Sun
Age
1.4 billion years

System

Distance from Earth
122.7 light-years (37.62 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2021
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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