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Exoplanet HD 23472 d
Exoplanet HD 23472 d orbits star HD 23472 that lies 127 light years away from the Sun.
It weighs about 0.55 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
127 light years
127 light years
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HD 23472 d
Exoplanet
Star: HD 23472
Distance from the star: 0.04298 AU
Orbit around star: 3.97664 days
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Orbital period
Orbital period of exoplanet HD 23472 d around its star is 3.97664 days.
The orbital period of an exoplanet is the time it takes to complete one full orbit around its star, usually measured in days. Most of the exoplanets discovered so far have orbital periods of less than one year...
More about Orbital period in StellarGuide
Eccentricity: 0.07Basic characteristic
Mass: 0.55 M Earth
Exoplanet mass
Exoplanet HD 23472 d has 0.55 Earth masses, or 0.67 times the mass of Venus.
The mass of an exoplanet is one of the most important characteristics for understanding what kind of world it is — whether it’s small and rocky like Earth or large and gaseous like Jupiter. Mass provides key information about the planet’s composition, gravity, and formation history...
More about Exoplanet mass in StellarGuide
Size: 0.75 R Earth | 0.1 R Jupiter
Density: 7188 kg/m3 | 130.38 % Earth
Temperature: 909.0 K | 635.85 °C
Year of discovery: 2019 (transit)
Other designations of this exoplanet
TOI 174 d
TOI 174 d
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HD 23472 system structure
Exoplanet HD 23472 d orbits star HD 23472, which has lower mass than Sun. It is one of 5 known exoplanets orbiting this star.
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HD 23472 | ||||||||
| HD 23472 f | n/a | 0.8 M⊕ | 1.1 R⊕ | 12.2 days | |||||
| HD 23472 d | 0.04 AU | 0.6 M⊕ | 0.8 R⊕ | 4 days | |||||
| HD 23472 b | 0.12 AU | 8.3 M⊕ | 1.9 R⊕ | 17.7 days | |||||
| HD 23472 c | 0.16 AU | 3.4 M⊕ | 1.9 R⊕ | 29.8 days | |||||
| HD 23472 e | 0.68 AU (HZ) | 0.7 M⊕ | 0.8 R⊕ | 7.9 days | |||||
Comparison
When comparing to the Solar system planets, HD 23472 d has 67 % of mass of Venus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 10 | 0.67 | 0.55 | 5 | 0 | 0.01 | 0.04 | 0.03 |
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Size | 1.96 | 0.79 | 0.75 | 1.42 | 0.07 | 0.08 | 0.19 | 0.2 |
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Density | 1.33 | 1.37 | 1.3 | 1.76 | 5.78 | 10.32 | 5.72 | 4.16 |
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Distance | 0.11 | 0.06 | 0.04 | 0.03 | 0.01 | 0 | 0 | 0 |
|
Temperature | 2.07 | 1.23 | 3.16 | 4.37 | 5.58 | 6.83 | 11.65 | 12.63 |
Habitability
Habitable zone of the star: 0.54 - 0.78 AU
The planet is too hot to sustain liquid water.
The planet has mass comparable to Earth.