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TOI-1749 b is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 1.4 times the radius of Earth. It has an equilibrium temperature of 831 K (558°C). The planet completes one orbit around its star every 2.4 Earth days. It was discovered in 2021 using the transit method. It orbits the M-type star TOI-1749, located approximately 100 parsecs (325 light-years) from Earth.
2021
Discovered
57.0
Earth Masses
1.39
Earth Radii
831
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,021
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period2.3884 days
Semi-Major Axis0.0291 AU
Eccentricity0.14
Inclination86.4 deg
Physical Properties
Mass (Jupiter)0.1793 MJ
Mass (Earth)57 M⊕
Radius (Jupiter)0.124 RJ
Radius (Earth)1.39 R⊕
Eq. Temperature831 K
Planetary Extremes
Where TOI-1749 b sits on the spectrum of all known exoplanets.
Mass57.0 M⊕
FeatherweightColossus
Radius1.39 R⊕
TinyEnormous
Temperature831 K
FrozenInferno
Year Length2.4 days
LightningGlacial
Star Distance0.029 AU
ScorchedFrozen exile
Star System View
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Size Comparison
1.39x Earth's radius (0.12x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)TOI-1749 b: 2.4 Earth days (0.029 AU)
Host Star: TOI-1749
Spectral TypeM0 V
Effective Temperature3,985 K
Mass0.58 M☉
Radius0.55 R☉
Size vs Sun1.82x smaller
Metallicity [Fe/H]-0.26
Distance (pc)99.5561 pc
Distance (ly)324.7 light-years
Planets in the TOI-1749 System
What If You Lived Here?
2065.1 kg
Your weight (from 70 kg)
29.50g
Lethal
No human could survive. You'd be pinned to the ground.
2.4 Earth days
Year length
Red sunrise
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