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2022
Discovered
0.6
Earth Masses
0.75
Earth Radii
909
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,022
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period3.9766 days
Semi-Major Axis0.043 AU
Eccentricity0.07
Inclination87.95 deg
Physical Properties
Mass (Jupiter)0.0017 MJ
Mass (Earth)0.55 M⊕
Radius (Jupiter)0.0669 RJ
Radius (Earth)0.75 R⊕
Density7.5 g/cm3
Eq. Temperature909 K
Insolation Flux117 S⊕
Planetary Extremes
Where HD 23472 d sits on the spectrum of all known exoplanets.
Mass0.6 M⊕
FeatherweightColossus
Radius0.75 R⊕
TinyEnormous
Temperature909 K
FrozenInferno
Year Length4.0 days
LightningGlacial
Density7.50 g/cm³
FluffyIron-dense
Star Distance0.043 AU
ScorchedFrozen exile
Star System View
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Size Comparison
0.75x Earth's radius
Orbit Comparison
Earth: 365.25 days (1 AU)HD 23472 d: 4.0 Earth days (0.043 AU)
Host Star: HD 23472
Spectral TypeK4 V
Effective Temperature4,684 K
Mass0.67 M☉
Radius0.71 R☉
Size vs Sun1.41x smaller
Luminosity0.237 L☉
Luminosity vs Sun4.2x dimmer
Metallicity [Fe/H]-0.2
Distance (pc)39.0341 pc
Distance (ly)127.3 light-years
Other Planets in the HD 23472 System
What If You Lived Here?
68.4 kg
Your weight (from 70 kg)
0.98g
Earth-like
Feels just like home — comfortably familiar.
4.0 Earth days
Year length
Orange sunrise
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