Exoplanet

TOI-205 b

Orbiting TOI-205

Overview

TOI-205 b is an exoplanet orbiting the star TOI-205, discovered in 2026 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.50

Earth radii

015 R⊕

Mass (est.)

7.25

Earth masses

0500 M⊕

Orbital Period

4.3

days

0.1d10,000d

Distance

177.8

parsecs

Nearby10,000 pc

Radius (Earth radii)

2.50

Mass (Earth masses)

7.25

Estimated

Equilibrium Temperature

Unknown

Parameter source: Lafarga et al. 2026

Orbital Period

4.253+0.000−0.000days

Distance from Earth

177.8 pc (~580 ly)

Spectral Type

Unknown

Temperature

6303 K

Mass (Solar)

Unknown

Radius (Solar)

1.45 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

7.9755°, -56.9651°

Discovery Method

Transit

Discovery Year

2026

Data Sources
NASA Exoplanet Archive

Source ID: TOI-205 b

System Context

TOI-205 b orbits TOI-205 and was reported in 2026 and was detected with the Transit method.

Published measurements list a radius of 2.5 Earth radii, a mass of 7.25 Earth masses (estimated), and an orbital period of 4.25 days.

Catalog data places the system at about 177.8 parsecs from Earth and 1 known planet in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open TOI-205