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Super-Earth

HD 23472 b

Orbiting HD 23472 | 39.0 parsecs away

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
EarthHD 23472 bJupiter

2.00x Earth's radius (0.18x Jupiter)

Orbit Comparison
EarthHD 23472 b
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

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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Related Research

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