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HD 110113 b is a Neptune-like exoplanet (an ice giant with a thick atmosphere), about 2.0 times the radius of Earth. Its scorching equilibrium temperature of 1371 K (1098°C) makes it far too hot for liquid water. The planet completes one orbit around its star every 2.5 Earth days. It was discovered in 2021 using the transit method. It orbits the G-type star HD 110113, located approximately 106 parsecs (347 light-years) from Earth.
2021
Discovered
4.5
Earth Masses
2.05
Earth Radii
1371
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,021
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period2.541 days
Semi-Major Axis0.035 AU
Eccentricity0.093
Physical Properties
Mass (Jupiter)0.0143 MJ
Mass (Earth)4.55 M⊕
Radius (Jupiter)0.1829 RJ
Radius (Earth)2.05 R⊕
Density2.9 g/cm3
Eq. Temperature1,371 K
Insolation Flux735.49 S⊕
Planetary Extremes
Where HD 110113 b sits on the spectrum of all known exoplanets.
Mass4.5 M⊕
FeatherweightColossus
Radius2.05 R⊕
TinyEnormous
Temperature1371 K
FrozenInferno
Year Length2.5 days
LightningGlacial
Density2.90 g/cm³
FluffyIron-dense
Star Distance0.035 AU
ScorchedFrozen exile
Star System View
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Size Comparison
2.05x Earth's radius (0.18x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)HD 110113 b: 2.5 Earth days (0.035 AU)
Host Star: HD 110113
Spectral TypeG
Effective Temperature5,732 K
Mass0.997 M☉
Radius0.968 R☉
Size vs Sun1.03x smaller
Metallicity [Fe/H]0.14
Distance (pc)106.307 pc
Distance (ly)346.7 light-years
Planets in the HD 110113 System
What If You Lived Here?
75.8 kg
Your weight (from 70 kg)
1.08g
Earth-like
Feels just like home — comfortably familiar.
2.5 Earth days
Year length
Yellow sunrise
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Related Research
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