Exoplanet

TOI-3288 b

Orbiting TOI-3288

Overview

TOI-3288 b is an exoplanet orbiting the star TOI-3288, discovered in 2025 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

12.24

Earth radii

015 R⊕

Mass

536.18

Earth masses

0500 M⊕

Orbital Period

1.4

days

0.1d10,000d

Distance

200.5

parsecs

Nearby10,000 pc

Equilibrium Temp

973

K

150 K3,500 K

Radius (Earth radii)

12.24

Mass (Earth masses)

536.18

Measured

Equilibrium Temperature

973 K

Parameter source: Dransfield et al. 2026

Orbital Period

1.434+0.000−0.000days

Semi-Major Axis

0.0228+0.0009−0.0009au

Planet Mass (Earth masses)

536.18+36.23−34.64

Planet Mass (Jupiter masses)

1.6870+0.1140−0.1090

Eccentricity

0.0210+0.0260−0.0150

Argument of Periastron

174.0+91.0−108.0deg

Radial Velocity Semi-Amplitude

433.00+16.00−17.00m/s

Distance from Earth

200.5 pc (~654 ly)

Spectral Type

M0±0.5

Temperature

4072 K

Mass (Solar)

0.64 M☉

Radius (Solar)

0.67 R☉

Luminosity

-0.95 log L☉

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

297.1103°, -43.0180°

Discovery Method

Transit

Discovery Year

2025

Data Sources
NASA Exoplanet Archive

Source ID: TOI-3288 b

System Context

TOI-3288 b orbits TOI-3288 and was reported in 2025 and was detected with the Transit method.

Published measurements list a radius of 12.24 Earth radii, a mass of 536.18 Earth masses, an orbital period of 1.43 days, and an equilibrium temperature near 973 K.

Catalog data places the system at about 200.5 parsecs from Earth, a host star classified as M0±0.5, 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-3288