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2019
Discovered
8.3
Earth Masses
2.00
Earth Radii
543
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,019
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period17.6671 days
Semi-Major Axis0.1162 AU
Eccentricity0.072
Inclination88.93 deg
Physical Properties
Mass (Jupiter)0.0262 MJ
Mass (Earth)8.32 M⊕
Radius (Jupiter)0.1784 RJ
Radius (Earth)2 R⊕
Density6.15 g/cm3
Eq. Temperature543 K
Insolation Flux16 S⊕
Planetary Extremes
Where HD 23472 b sits on the spectrum of all known exoplanets.
Mass8.3 M⊕
FeatherweightColossus
Radius2.00 R⊕
TinyEnormous
Temperature543 K
FrozenInferno
Year Length17.7 days
LightningGlacial
Density6.15 g/cm³
FluffyIron-dense
Star Distance0.116 AU
ScorchedFrozen exile
Star System View
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Size Comparison
2.00x Earth's radius (0.18x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)HD 23472 b: 17.7 Earth days (0.116 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?
145.6 kg
Your weight (from 70 kg)
2.08g
Crushing
Standing upright is a struggle. Your body feels like lead.
17.7 Earth days
Year length
Orange sunrise
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