Exoplanet

TOI-4034 b

Orbiting TOI-4034

Overview

TOI-4034 b is an exoplanet orbiting the star TOI-4034, discovered in 2026 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

17.71

Earth radii

015 R⊕

Mass

276.51

Earth masses

0500 M⊕

Orbital Period

1.8

days

0.1d10,000d

Distance

745.1

parsecs

Nearby10,000 pc

Equilibrium Temp

1907

K

150 K3,500 K

Radius (Earth radii)

17.71

Mass (Earth masses)

276.51

Measured

Equilibrium Temperature

1907 K

Parameter source: Battley et al. 2026

Orbital Period

1.802+0.000−0.000days

Semi-Major Axis

0.0329+0.0007−0.0007au

Planet Mass (Earth masses)

276.51+50.85−50.85

Planet Mass (Jupiter masses)

0.8700+0.1600−0.1600

Eccentricity

0.0000

Argument of Periastron

90.0deg

Radial Velocity Semi-Amplitude

128.00+19.00−21.00m/s

Distance from Earth

745.1 pc (~2430 ly)

Spectral Type

Unknown

Temperature

5891 K

Mass (Solar)

1.19 M☉

Radius (Solar)

1.83 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

335.1470°, 71.7673°

Discovery Method

Transit

Discovery Year

2026

Data Sources
NASA Exoplanet Archive

Source ID: TOI-4034 b

System Context

TOI-4034 b orbits TOI-4034 and was reported in 2026 and was detected with the Transit method.

Published measurements list a radius of 17.71 Earth radii, a mass of 276.51 Earth masses, an orbital period of 1.8 days, and an equilibrium temperature near 1,907 K.

Catalog data places the system at about 745.1 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-4034
TOI-4034 b