stars
exoplanets
news
Exoplanet Kepler-47 A d
Exoplanet Kepler-47 A d orbits star Kepler-47 A that lies 3442 light years away from the Sun.
It weighs about 25 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
3442 light years
3442 light years
Loading may take a moment.
Kepler-47 A d
Exoplanet
Star: Kepler-47 A
Distance from the star: 0.6992 AU
Orbit around star: 187.35 days
+
Orbital period
Orbital period of exoplanet Kepler-47 A d around its star is 187.35 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: 25 M Earth
Exoplanet mass
Exoplanet Kepler-47 A d has 25 Earth masses, or 1.45 times the mass of Neptune.
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: 7.04 R Earth | 0.6 R Jupiter
Density: 395 kg/m3 | 7.16 % Earth
Year of discovery: 2012 (transit)
Other designations of this exoplanet
2MASS J19411149+4655136 d, KIC 10020423 d, KOI-3154 d, KOI-7273 d, TIC 271548206 d, Gaia DR2 2080506523540902912 d
2MASS J19411149+4655136 d, KIC 10020423 d, KOI-3154 d, KOI-7273 d, TIC 271548206 d, Gaia DR2 2080506523540902912 d
Advertisement
Kepler-47 system structure
Exoplanet Kepler-47 A d orbits star Kepler-47 A, which has bigger mass than Sun. It is one of 3 known exoplanets orbiting this star.
|
|
Kepler-47 A | ||||||||
| Kepler-47 A b | 0.3 AU | 8.4 M⊕ | 3 R⊕ | 49.5 days | |||||
| Kepler-47 A d | 0.7 AU | 25 M⊕ | 7 R⊕ | 187.4 days | |||||
| Kepler-47 A c | 0.99 AU | 23.2 M⊕ | 4.6 R⊕ | 303.2 days | |||||
|
|
Kepler-47 B | ||||||||
Comparison
When comparing to the Solar system planets, Kepler-47 A d has 1.45 times the mass of Neptune and it orbits its star a little closer than Venus.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 454.55 | 30.67 | 25 | 227.27 | 0.08 | 0.26 | 1.71 | 1.45 |
|
Size | 18.39 | 7.41 | 7.04 | 13.28 | 0.63 | 0.77 | 1.76 | 1.85 |
|
Density | 0.07 | 0.08 | 0.07 | 0.1 | 0.32 | 0.57 | 0.31 | 0.23 |
|
Distance | 1.79 | 0.97 | 0.7 | 0.46 | 0.13 | 0.07 | 0.04 | 0.02 |