Exoplanet

TOI-5261 b

Orbiting TOI-5261

Overview

TOI-5261 b is an exoplanet orbiting the star TOI-5261, discovered in 2025 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

11.60

Earth radii

015 R⊕

Mass

3651.85

Earth masses

0500 M⊕

Orbital Period

4.2

days

0.1d10,000d

Distance

377.1

parsecs

Nearby10,000 pc

Equilibrium Temp

1244

K

150 K3,500 K

Radius (Earth radii)

11.60

Mass (Earth masses)

3651.85

Measured

Equilibrium Temperature

1244 K

Orbital Period

4.15 days

Distance from Earth

377.1 pc (~1230 ly)

Spectral Type

Unknown

Temperature

5790 K

Mass (Solar)

1.04 M☉

Radius (Solar)

1.02 R☉

Luminosity

0.02 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

305.4585°, 19.4358°

Discovery Method

Transit

Discovery Year

2025

Data Sources
NASA Exoplanet Archive

Source ID: TOI-5261 b

System Context

TOI-5261 b orbits TOI-5261 and was reported in 2025 and was detected with the Transit method.

Published measurements list a radius of 11.6 Earth radii, a mass of 3,651.85 Earth masses, an orbital period of 4.15 days, and an equilibrium temperature near 1,244 K.

Catalog data places the system at about 377.1 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-5261