Kepler-114 d
Kepler-114 d is a puffy low-density planet orbiting Kepler-114 in the constellation Cygnus. It lies about 847 light-years from Earth and was discovered in 2013 using the transit method.
How Big Is Kepler-114 d?
Kepler-114 d has a radius of 2.53 times that of Earth. Its mass is 3.9 times that of Earth.
Is Kepler-114 d in the Habitable Zone?
The position of Kepler-114 d relative to the habitable zone of Kepler-114 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on Kepler-114 d — one full orbit around Kepler-114 — lasts 11.8 Earth days, shorter than Mercury's 88-day year.
How Was Kepler-114 d Discovered?
Kepler-114 d was discovered in 2013 using the transit method, with observations from Kepler.
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is Kepler-114 d?
Kepler-114 d is 846.5 light-years (259.5 parsecs) from Earth. Light arriving here tonight left the planet around the year 1180. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 14,898,400 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. Kepler-114 d scores 0.27, ranking #2,559 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-114
Kepler-114
- Mass
- 0.56 M☉
- Radius
- 0.54 R☉
The Kepler-114 Planetary System
Kepler-114 d is one of 3 known planets in the Kepler-114 system. Its siblings:
- Kepler-114 b (Super Earth)
- Kepler-114 c (Super Earth)
Kepler-114 d — Complete Data
| Radius | 2.530 Earth radii (0.226 Jupiter radii) |
|---|---|
| Mass | 3.90 Earth masses (0.012 Jupiter masses) |
| Orbital period | 11.78 days |
| Earth Similarity Index | 0.27 |
| Distance from Earth | 846.5 light-years (259.5 parsecs) |
| Constellation | Cygnus |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2013 |
Data: NASA Exoplanet Archive, last updated 2014-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-114 d
Is Kepler-114 d habitable?
Kepler-114 d is not known to orbit within the habitable zone of Kepler-114, and as a puffy low-density planet it is an unlikely candidate for life as we know it.
How far away is Kepler-114 d?
Kepler-114 d is about 847 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 14,898,400 years to get there.
How big is Kepler-114 d compared to Earth?
Kepler-114 d has 2.53 times the radius of Earth and about 3.9 times its mass.
How long is a year on Kepler-114 d?
One orbit around Kepler-114 takes 11.8 Earth days — short enough that 31 of its years would fit into one Earth year.
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