Exoplanet

TOI-791 b

Orbiting TOI-791

Overview

TOI-791 b is an exoplanet orbiting the star TOI-791, discovered in 2026 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

11.13

Earth radii

015 R⊕

Mass

9.50

Earth masses

0500 M⊕

Orbital Period

139.3

days

0.1d10,000d

Distance

341.2

parsecs

Nearby10,000 pc

Equilibrium Temp

434

K

150 K3,500 K

Radius (Earth radii)

11.13

Mass (Earth masses)

9.50

Measured

Equilibrium Temperature

434 K

Parameter source: Dransfield et al. 2026

Orbital Period

139.299+0.000−0.000days

Semi-Major Axis

0.6020+0.0220−0.0220au

Planet Mass (Earth masses)

9.50+1.64−1.81

Planet Mass (Jupiter masses)

0.0299+0.0052−0.0057

Eccentricity

0.0320+0.0140−0.0320

Distance from Earth

341.2 pc (~1113 ly)

Spectral Type

F7

Temperature

6294 K

Mass (Solar)

1.28 M☉

Radius (Solar)

1.47 R☉

Luminosity

Unknown

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

118.4348°, -69.7017°

Discovery Method

Transit

Discovery Year

2026

Data Sources
NASA Exoplanet Archive

Source ID: TOI-791 b

System Context

TOI-791 b orbits TOI-791 and was reported in 2026 and was detected with the Transit method.

Published measurements list a radius of 11.13 Earth radii, a mass of 9.5 Earth masses, an orbital period of 139.3 days, and an equilibrium temperature near 434 K.

Catalog data places the system at about 341.2 parsecs from Earth, a host star classified as F7, and 2 known planets in the system.

More planets in this system

TOI-791 c