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Exoplanet 8 Ursae Minoris b
Exoplanet 8 Ursae Minoris b orbits star 8 Ursae Minoris that lies 532 light years away from the Sun.
It weighs about 416.458 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
532 light years
532 light years
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8 Ursae Minoris b
Exoplanet, gas giant
Star: 8 Ursae Minoris
Distance from the star: 0.49 AU
Orbit around star: 93.31 days
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Orbital period
Orbital period of exoplanet 8 Ursae Minoris b around its star is 93.31 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: 0.062Basic characteristic
Mass: 416.458 M Earth
| 1.3104 M Jupiter
Exoplanet mass
Exoplanet 8 Ursae Minoris b has 416.458 Earth masses (or 1.3104 Jupiter masses).
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: 13.675 R Earth | 1.2 R Jupiter
Density: 898 kg/m3 | 16.29 % Earth
Year of discovery: 2015 (radial velocity)
Other designations of this exoplanet
Baekdu b, 8 UMi b, HD 133086 b, HIP 73136 b, BD+75 547 b, 2MASS J14564834+7454032 b, WDS J14568+7454A b, Gaia DR3 1700658653802527104 b
Baekdu b, 8 UMi b, HD 133086 b, HIP 73136 b, BD+75 547 b, 2MASS J14564834+7454032 b, WDS J14568+7454A b, Gaia DR3 1700658653802527104 b
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8 Ursae Minoris system structure
Exoplanet 8 Ursae Minoris b orbits star 8 Ursae Minoris, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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8 Ursae Minoris | ||||||||
| 8 Ursae Minoris b | 0.49 AU | 416.5 M⊕ | 13.7 R⊕ | 93.3 days | |||||
Comparison
When comparing to the Solar system planets, 8 Ursae Minoris b has 1.31 times the mass of Jupiter and it orbits its star between distances of Mercury and Venus from the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 7571.96 | 510.99 | 416.46 | 3785.98 | 1.31 | 4.37 | 28.52 | 24.21 |
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Size | 35.71 | 14.39 | 13.68 | 25.8 | 1.22 | 1.5 | 3.42 | 3.6 |
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Density | 0.17 | 0.17 | 0.16 | 0.22 | 0.72 | 1.29 | 0.71 | 0.52 |
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Distance | 1.26 | 0.68 | 0.49 | 0.32 | 0.09 | 0.05 | 0.03 | 0.02 |
Habitability
Habitable zone of the star: 8.5 - 12.3 AU
The planet is too hot to sustain liquid water.
News from this star system
03. 07 2023
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