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TOI-4529 b is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 1.8 times the radius of Earth. It has an equilibrium temperature of 511 K (238°C). The planet completes one orbit around its star every 5.9 Earth days. It was discovered in 2026 using the transit method. It orbits the M-type star TOI-4529, located approximately 28 parsecs (93 light-years) from Earth.
2026
Discovered
4.9
Earth Masses
1.77
Earth Radii
511
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,026
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period5.8796 days
Semi-Major Axis0.05 AU
Inclination88.7 deg
Physical Properties
Mass (Jupiter)0.0154 MJ
Mass (Earth)4.9 M⊕
Radius (Jupiter)0.1579 RJ
Radius (Earth)1.77 R⊕
Density4.8 g/cm3
Eq. Temperature511 K
Planetary Extremes
Where TOI-4529 b sits on the spectrum of all known exoplanets.
Mass4.9 M⊕
FeatherweightColossus
Radius1.77 R⊕
TinyEnormous
Temperature511 K
FrozenInferno
Year Length5.9 days
LightningGlacial
Density4.80 g/cm³
FluffyIron-dense
Star Distance0.050 AU
ScorchedFrozen exile
Star System View
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Size Comparison
1.77x Earth's radius (0.16x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)TOI-4529 b: 5.9 Earth days (0.050 AU)
Host Star: TOI-4529
Spectral TypeM1.5 V
Effective Temperature3,697 K
Mass0.482 M☉
Radius0.48 R☉
Size vs Sun2.08x smaller
Luminosity0.0387 L☉
Luminosity vs Sun25.9x dimmer
Metallicity [Fe/H]-0.24
Distance (pc)28.384 pc
Distance (ly)92.6 light-years
Planets in the TOI-4529 System
What If You Lived Here?
109.5 kg
Your weight (from 70 kg)
1.56g
Heavy
Every step takes effort. Climbing stairs is exhausting.
5.9 Earth days
Year length
Red sunrise
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