Kepler-95 b
Kepler-95 b is a sub-Neptune orbiting Kepler-95 in the constellation Lyra. It lies about 1,454 light-years from Earth and was discovered in 2014 using the transit method.
How Big Is Kepler-95 b?
Kepler-95 b has a radius of 3.42 times that of Earth. Its mass is 13.0 times that of Earth, giving it a density of 1.71 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is Kepler-95 b in the Habitable Zone?
The position of Kepler-95 b relative to the habitable zone of Kepler-95 cannot be precisely determined from the available orbital data.
Habitable zone of Kepler-95: 1.034–2.442 AU (conservative: 1.310–2.315 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-95 b — one full orbit around Kepler-95 — lasts 11.5 Earth days, shorter than Mercury's 88-day year.
How Was Kepler-95 b Discovered?
Kepler-95 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-95 b?
Kepler-95 b is 1,453.5 light-years (445.7 parsecs) from Earth. Light arriving here tonight left the planet about 1,454 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 25,581,600 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-95 b scores 0.20, ranking #3,874 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-95
Kepler-95
- Surface temperature
- 5,699 K (Sun: 5,772 K)
- Mass
- 1.08 M☉
- Radius
- 1.41 R☉
- Age
- 5.6 billion years (Sun: 4.6)
Planetary System
Kepler-95 b is the only planet known to orbit Kepler-95 so far.
Kepler-95 b — Complete Data
| Radius | 3.420 Earth radii (0.305 Jupiter radii) |
|---|---|
| Mass | 13.00 Earth masses (0.041 Jupiter masses) |
| Density | 1.71 g/cm³ (Earth: 5.51) |
| Orbital period | 11.52 days |
| Earth Similarity Index | 0.20 |
| Distance from Earth | 1,453.5 light-years (445.7 parsecs) |
| Constellation | Lyra |
| 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-95 b
Is Kepler-95 b habitable?
Kepler-95 b is not known to orbit within the habitable zone of Kepler-95, and as a sub-Neptune it is an unlikely candidate for life as we know it.
How far away is Kepler-95 b?
Kepler-95 b is about 1,454 light-years from Earth in the constellation Lyra. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 25,581,600 years to get there.
How big is Kepler-95 b compared to Earth?
Kepler-95 b has 3.42 times the radius of Earth and about 13.0 times its mass.
How long is a year on Kepler-95 b?
One orbit around Kepler-95 takes 11.5 Earth days — short enough that 32 of its years would fit into one Earth year.
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