Kepler-113 b
Kepler-113 b is a super-Earth orbiting Kepler-113 in the constellation Cygnus. It lies about 856 light-years from Earth and was discovered in 2014 using the transit method.
How Big Is Kepler-113 b?
Kepler-113 b has a radius of 1.82 times that of Earth. Its mass is 11.7 times that of Earth, giving it a density of 10.73 g/cm³ — comparable to rocky planets like Earth (5.51 g/cm³).
Is Kepler-113 b in the Habitable Zone?
The position of Kepler-113 b relative to the habitable zone of Kepler-113 cannot be precisely determined from the available orbital data.
Habitable zone of Kepler-113: 0.366–0.895 AU (conservative: 0.463–0.848 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on Kepler-113 b — one full orbit around Kepler-113 — lasts 4.75 Earth days, shorter than Mercury's 88-day year.
How Was Kepler-113 b Discovered?
Kepler-113 b was discovered in 2014 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-113 b?
Kepler-113 b is 855.7 light-years (262.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1171. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 15,060,320 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-113 b scores 0.28, ranking #2,362 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-113
Kepler-113
- Surface temperature
- 4,725 K (Sun: 5,772 K)
- Mass
- 0.75 M☉
- Radius
- 0.69 R☉
- Age
- 6.9 billion years (Sun: 4.6)
The Kepler-113 Planetary System
Kepler-113 b is one of 2 known planets in the Kepler-113 system. Its siblings:
- Kepler-113 c (Super Earth)
Kepler-113 b — Complete Data
| Radius | 1.820 Earth radii (0.162 Jupiter radii) |
|---|---|
| Mass | 11.70 Earth masses (0.037 Jupiter masses) |
| Density | 10.73 g/cm³ (Earth: 5.51) |
| Orbital period | 4.75 days |
| Earth Similarity Index | 0.28 |
| Distance from Earth | 855.7 light-years (262.4 parsecs) |
| Constellation | Cygnus |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2014 |
Data: NASA Exoplanet Archive, last updated 2014-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-113 b
Is Kepler-113 b habitable?
Kepler-113 b is not known to orbit within the habitable zone of Kepler-113, and as a super-Earth it is an unlikely candidate for life as we know it.
How far away is Kepler-113 b?
Kepler-113 b is about 856 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 15,060,320 years to get there.
How big is Kepler-113 b compared to Earth?
Kepler-113 b has 1.82 times the radius of Earth and about 11.7 times its mass.
How long is a year on Kepler-113 b?
One orbit around Kepler-113 takes 4.8 Earth days — short enough that 77 of its years would fit into one Earth year.
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