stars
exoplanets
news
Exoplanet HD 213885 A b
Exoplanet HD 213885 A b orbits star HD 213885 A that lies 156 light years away from the Sun.
It weighs about 8.83 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
156 light years
156 light years
Loading may take a moment.
HD 213885 A b
Exoplanet, super-earth
Star: HD 213885 A
Distance from the star: 0.02012 AU
Orbit around star: 1.008035 days
+
Orbital period
Orbital period of exoplanet HD 213885 A b around its star is 1.008035 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
Basic characteristic
Mass: 8.83 M Earth
Exoplanet mass
Exoplanet HD 213885 A b has 8.83 Earth masses, or 0.6 times the mass of Uranus.
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: 1.75 R Earth | 0.2 R Jupiter
Density: 9084 kg/m3 | 164.77 % Earth
Temperature: 2128 K | 1854.85 °C
Year of discovery: 2019 (transit)Advertisement
HD 213885 system structure
Exoplanet HD 213885 A b orbits star HD 213885 A, which has bigger mass than Sun. It is one of 2 known exoplanets orbiting this star.
|
|
HD 213885 A | ||||||||
| HD 213885 A b | 0.02 AU | 8.8 M⊕ | 1.8 R⊕ | 1 days | |||||
| HD 213885 A c | 0.06 AU | 20 M⊕ | 4.8 days | ||||||
|
|
HD 213885 B | 23 AU | |||||||
|
|
HD 213885 C | 64 AU | |||||||
Comparison
When comparing to the Solar system planets, HD 213885 A b has 60 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 160.55 | 10.83 | 8.83 | 80.27 | 0.03 | 0.09 | 0.6 | 0.51 |
|
Size | 4.57 | 1.84 | 1.75 | 3.3 | 0.16 | 0.19 | 0.44 | 0.46 |
|
Density | 1.68 | 1.73 | 1.65 | 2.23 | 7.3 | 13.04 | 7.22 | 5.26 |
|
Distance | 0.05 | 0.03 | 0.02 | 0.01 | 0 | 0 | 0 | 0 |
|
Temperature | 4.84 | 2.89 | 7.39 | 10.23 | 13.06 | 16 | 27.28 | 29.56 |
Habitability
Habitable zone of the star: 1.1 - 1.6 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.