Exoplanet

TOI-4029 b

Orbiting TOI-4029

Overview

TOI-4029 b is an exoplanet orbiting the star TOI-4029, discovered in 2026 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

6.74

Earth radii

015 R⊕

Mass (est.)

38.97

Earth masses

0500 M⊕

Orbital Period

5.9

days

0.1d10,000d

Distance

274.4

parsecs

Nearby10,000 pc

Radius (Earth radii)

6.74

Mass (Earth masses)

38.97

Estimated

Equilibrium Temperature

Unknown

Parameter source: Lafarga et al. 2026

Orbital Period

5.885+0.000−0.000days

Distance from Earth

274.4 pc (~895 ly)

Spectral Type

Unknown

Temperature

5663 K

Mass (Solar)

Unknown

Radius (Solar)

1.18 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

239.2337°, 16.9803°

Discovery Method

Transit

Discovery Year

2026

Data Sources
NASA Exoplanet Archive

Source ID: TOI-4029 b

System Context

TOI-4029 b orbits TOI-4029 and was reported in 2026 and was detected with the Transit method.

Published measurements list a radius of 6.74 Earth radii, a mass of 38.97 Earth masses (estimated), and an orbital period of 5.88 days.

Catalog data places the system at about 274.4 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-4029