Kepler-154 f
Kepler-154 f is a super-Earth orbiting Kepler-154 in the constellation Cygnus. It lies about 2,985 light-years from Earth and was discovered in 2016 using the transit method.
How Big Is Kepler-154 f?
Kepler-154 f has a radius of 1.50 times that of Earth.
Is Kepler-154 f in the Habitable Zone?
The position of Kepler-154 f relative to the habitable zone of Kepler-154 cannot be precisely determined from the available orbital data.
Habitable zone of Kepler-154: 0.732–1.730 AU (conservative: 0.928–1.640 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-154 f — one full orbit around Kepler-154 — lasts 9.92 Earth days, shorter than Mercury's 88-day year.
How Was Kepler-154 f Discovered?
Kepler-154 f was discovered in 2016 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-154 f?
Kepler-154 f is 2,985.0 light-years (915.2 parsecs) from Earth. Light arriving here tonight left the planet about 2,985 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 52,536,000 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-154 f scores 0.29, ranking #1,918 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-154
Kepler-154
- Surface temperature
- 5,690 K (Sun: 5,772 K)
- Radius
- 1.00 R☉
The Kepler-154 Planetary System
Kepler-154 f is one of 5 known planets in the Kepler-154 system. Its siblings:
- Kepler-154 b (Mini Neptune)
- Kepler-154 c (Mini Neptune)
- Kepler-154 d (Sub Neptune)
- Kepler-154 e (Super Earth)
Kepler-154 f — Complete Data
| Radius | 1.500 Earth radii (0.134 Jupiter radii) |
|---|---|
| Orbital period | 9.92 days |
| Earth Similarity Index | 0.29 |
| Distance from Earth | 2,985.0 light-years (915.2 parsecs) |
| Constellation | Cygnus |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2016 |
Data: NASA Exoplanet Archive, last updated 2016-05-06. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-154 f
Is Kepler-154 f habitable?
Kepler-154 f is not known to orbit within the habitable zone of Kepler-154, and as a super-Earth it is an unlikely candidate for life as we know it.
How far away is Kepler-154 f?
Kepler-154 f is about 2,985 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 52,536,000 years to get there.
How big is Kepler-154 f compared to Earth?
Kepler-154 f has 1.50 times the radius of Earth.
How long is a year on Kepler-154 f?
One orbit around Kepler-154 takes 9.9 Earth days — short enough that 37 of its years would fit into one Earth year.
Explore Kepler-154 f in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
