TOI-4438 b
Orbiting TOI-4438
TOI-4438 b is an exoplanet orbiting the star TOI-4438, discovered in 2024 using the Transit method. It is a Super-Earth world.
Radius
2.40
Earth radii
Mass
4.11
Earth masses
Orbital Period
7.4
days
Distance
30.0
parsecs
Equilibrium Temp
446
K
Radius (Earth radii)
2.40
Mass (Earth masses)
4.11
Measured
Equilibrium Temperature
446 K
Parameter source: Serrano Bell et al. 2026
Orbital Period
7.446+0.000−0.000days
Semi-Major Axis
0.0523+0.0009−0.0009au
Planet Mass (Earth masses)
4.11+0.40−0.38
Planet Mass (Jupiter masses)
0.0129+0.0013−0.0012
Eccentricity
0.0700+0.0700−0.0500
Argument of Periastron
-86.0+86.0−63.0deg
Radial Velocity Semi-Amplitude
2.75+0.24−0.23m/s
Distance from Earth
30.0 pc (~98 ly)
Spectral Type
M3.5 V
Temperature
3501 K
Mass (Solar)
0.34 M☉
Radius (Solar)
0.36 R☉
Luminosity
-1.77 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
270.3172°, 35.5949°
Discovery Method
Transit
Discovery Year
2024
Source ID: TOI-4438 b
TOI-4438 b orbits TOI-4438 and was reported in 2024 and was detected with the Transit method.
Published measurements list a radius of 2.4 Earth radii, a mass of 4.11 Earth masses, an orbital period of 7.45 days, and an equilibrium temperature near 446 K.
Catalog data places the system at about 30 parsecs from Earth, a host star classified as M3.5 V, 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-4438