TOI-1533 b
Orbiting TOI-1533
TOI-1533 b is an exoplanet orbiting the star TOI-1533, discovered in 2026 using the Transit method. It is a Mini-Neptune world.
Radius
2.89
Earth radii
Mass
28.10
Earth masses
Orbital Period
3.6
days
Distance
100.1
parsecs
Radius (Earth radii)
2.89
Mass (Earth masses)
28.10
Measured
Equilibrium Temperature
Unknown
Parameter source: Mantovan et al. 2026
Orbital Period
3.646+0.000−0.000days
Semi-Major Axis
0.0445+0.0008−0.0008au
Planet Mass (Earth masses)
28.10+3.30−3.40
Planet Mass (Jupiter masses)
0.0884+0.0104−0.0107
Eccentricity
0.0000
Argument of Periastron
90.0deg
Radial Velocity Semi-Amplitude
12.80+1.40−1.50m/s
Distance from Earth
100.1 pc (~326 ly)
Spectral Type
Unknown
Temperature
5146 K
Mass (Solar)
0.88 M☉
Radius (Solar)
0.85 R☉
Luminosity
-0.35 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
355.2467°, 57.4852°
Discovery Method
Transit
Discovery Year
2026
Source ID: TOI-1533 b
TOI-1533 b orbits TOI-1533 and was reported in 2026 and was detected with the Transit method.
Published measurements list a radius of 2.89 Earth radii, a mass of 28.1 Earth masses, and an orbital period of 3.65 days.
Catalog data places the system at about 100.1 parsecs from Earth and 2 known planets in the system.
More planets in this system