Kepler-283 c
Kepler-283 c is a super-Earth orbiting Kepler-283 in the constellation Cygnus. It lies about 1,527 light-years from Earth and was discovered in 2014 using the transit method. It orbits within the habitable zone of its star — the region where liquid water could exist on a planet's surface.
How Big Is Kepler-283 c?
Kepler-283 c has a radius of 1.82 times that of Earth.
Is Kepler-283 c in the Habitable Zone?
Kepler-283 c orbits inside the conservative habitable zone of Kepler-283 — the region where a rocky planet could sustain liquid water on its surface. This makes it one of the most interesting known exoplanets in the search for life.
Habitable zone of Kepler-283: 0.258–0.642 AU (conservative: 0.327–0.608 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-283 c — one full orbit around Kepler-283 — lasts 92.7 Earth days, between the years of Mercury (88 days) and Earth (365 days). It orbits at an average distance of 0.341 AU — closer to its star than Mercury is to the Sun.
How Was Kepler-283 c Discovered?
Kepler-283 c 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-283 c?
Kepler-283 c is 1,526.7 light-years (468.1 parsecs) from Earth. Light arriving here tonight left the planet about 1,527 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 26,869,920 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-283 c scores 0.79, ranking #30 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-283
Kepler-283
- Surface temperature
- 4,351 K (Sun: 5,772 K)
- Radius
- 0.57 R☉
The Kepler-283 Planetary System
Kepler-283 c is one of 2 known planets in the Kepler-283 system. Its siblings:
- Kepler-283 b (Mini Neptune)
Kepler-283 c — Complete Data
| Radius | 1.820 Earth radii (0.162 Jupiter radii) |
|---|---|
| Orbital period | 92.74 days |
| Orbital distance | 0.341 AU |
| Earth Similarity Index | 0.79 |
| Distance from Earth | 1,526.7 light-years (468.1 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-283 c
Is Kepler-283 c habitable?
Kepler-283 c orbits within the habitable zone of Kepler-283, the region where liquid water could exist on a planet's surface. It sits in the conservative habitable zone — the most promising region for habitability. Whether it is actually habitable depends on its atmosphere and composition, which remain unknown.
How far away is Kepler-283 c?
Kepler-283 c is about 1,527 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 26,869,920 years to get there.
How big is Kepler-283 c compared to Earth?
Kepler-283 c has 1.82 times the radius of Earth.
How long is a year on Kepler-283 c?
One orbit around Kepler-283 takes 92.7 Earth days.
Explore Kepler-283 c in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
