Exoplanet

TOI-5398 c

Orbiting TOI-5398

Overview

TOI-5398 c is an exoplanet orbiting the star TOI-5398, discovered in 2023 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

3.52

Earth radii

015 R⊕

Mass

11.80

Earth masses

0500 M⊕

Orbital Period

4.8

days

0.1d10,000d

Distance

130.9

parsecs

Nearby10,000 pc

Equilibrium Temp

1242

K

150 K3,500 K

Radius (Earth radii)

3.52

Mass (Earth masses)

11.80

Measured

Equilibrium Temperature

1242 K

Parameter source: Mantovan et al. 2024

Orbital Period

4.773+0.000−0.000days

Semi-Major Axis

0.0570+0.0030−0.0030au

Planet Mass (Earth masses)

11.80+4.80−4.70

Planet Mass (Jupiter masses)

0.0371+0.0151−0.0148

Eccentricity

<0.14

Argument of Periastron

172.0+79.0−107.0deg

Radial Velocity Semi-Amplitude

4.10+1.70−1.60m/s

Distance from Earth

130.9 pc (~427 ly)

Spectral Type

G V

Temperature

6000 K

Mass (Solar)

1.15 M☉

Radius (Solar)

1.05 R☉

Luminosity

Unknown

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

161.8796°, 36.3294°

Discovery Method

Transit

Discovery Year

2023

Data Sources
NASA Exoplanet Archive

Source ID: TOI-5398 c

System Context

TOI-5398 c orbits TOI-5398 and was reported in 2023 and was detected with the Transit method.

Published measurements list a radius of 3.52 Earth radii, a mass of 11.8 Earth masses, an orbital period of 4.77 days, and an equilibrium temperature near 1,242 K.

Catalog data places the system at about 130.9 parsecs from Earth, a host star classified as G V, and 2 known planets in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open TOI-5398

More planets in this system

TOI-5398 b