Kepler-150 b
Kepler-150 b is a terrestrial planet orbiting Kepler-150 in the constellation Lyra. It lies about 2,906 light-years from Earth and was discovered in 2014 using the transit method.
How Big Is Kepler-150 b?
Kepler-150 b has a radius of 1.25 times that of Earth.
Is Kepler-150 b in the Habitable Zone?
Kepler-150 b orbits inside the inner edge of the habitable zone of Kepler-150. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of Kepler-150: 0.632–1.501 AU (conservative: 0.801–1.423 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-150 b — one full orbit around Kepler-150 — lasts 3.43 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.044 AU — closer to its star than Mercury is to the Sun.
How Was Kepler-150 b Discovered?
Kepler-150 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-150 b?
Kepler-150 b is 2,906.4 light-years (891.1 parsecs) from Earth. Light arriving here tonight left the planet about 2,906 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 51,152,640 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-150 b scores 0.29, ranking #1,708 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-150
Kepler-150
- Surface temperature
- 5,528 K (Sun: 5,772 K)
- Mass
- 0.97 M☉
- Radius
- 0.91 R☉
- Luminosity
- 0.6896 L☉
The Kepler-150 Planetary System
Kepler-150 b is one of 5 known planets in the Kepler-150 system. Its siblings:
- Kepler-150 c (Sub Neptune)
- Kepler-150 d (Mini Neptune)
- Kepler-150 e (Sub Neptune)
- Kepler-150 f (Sub Neptune)
Kepler-150 b — Complete Data
| Radius | 1.250 Earth radii (0.112 Jupiter radii) |
|---|---|
| Orbital period | 3.43 days |
| Orbital distance | 0.044 AU |
| Earth Similarity Index | 0.29 |
| Distance from Earth | 2,906.4 light-years (891.1 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-150 b
Is Kepler-150 b habitable?
No — Kepler-150 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is Kepler-150 b?
Kepler-150 b is about 2,906 light-years from Earth in the constellation Lyra. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 51,152,640 years to get there.
How big is Kepler-150 b compared to Earth?
Kepler-150 b has 1.25 times the radius of Earth.
How long is a year on Kepler-150 b?
One orbit around Kepler-150 takes 3.4 Earth days — short enough that 107 of its years would fit into one Earth year.
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