Exoplanet

TOI-4405 b

Orbiting TOI-4405

Overview

TOI-4405 b is an exoplanet orbiting the star TOI-4405, discovered in 2026 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.56

Earth radii

015 R⊕

Mass (est.)

7.51

Earth masses

0500 M⊕

Orbital Period

5.9

days

0.1d10,000d

Distance

155.5

parsecs

Nearby10,000 pc

Radius (Earth radii)

2.56

Mass (Earth masses)

7.51

Estimated

Equilibrium Temperature

Unknown

Parameter source: Lafarga et al. 2026

Orbital Period

5.921+0.000−0.000days

Distance from Earth

155.5 pc (~507 ly)

Spectral Type

Unknown

Temperature

4467 K

Mass (Solar)

Unknown

Radius (Solar)

0.69 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

101.5953°, -75.4441°

Discovery Method

Transit

Discovery Year

2026

Data Sources
NASA Exoplanet Archive

Source ID: TOI-4405 b

System Context

TOI-4405 b orbits TOI-4405 and was reported in 2026 and was detected with the Transit method.

Published measurements list a radius of 2.56 Earth radii, a mass of 7.51 Earth masses (estimated), and an orbital period of 5.92 days.

Catalog data places the system at about 155.5 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-4405