KOI-319 c
KOI-319 c is a exoplanet orbiting KOI-319 in the constellation Cygnus. It lies about 2,153 light-years from Earth and was discovered in 2014 using the transit timing variations method.
Is KOI-319 c in the Habitable Zone?
The position of KOI-319 c relative to the habitable zone of KOI-319 cannot be precisely determined from the available orbital data.
Habitable zone of KOI-319: 1.594–3.746 AU (conservative: 2.019–3.552 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 KOI-319 c — one full orbit around KOI-319 — lasts 80.1 Earth days, shorter than Mercury's 88-day year. Its orbit is nearly circular (eccentricity 0.032).
How Was KOI-319 c Discovered?
KOI-319 c was discovered in 2014 using the transit timing variations method, with observations from Kepler.
Transit timing variations reveal a planet through its gravitational tug on a sibling planet, which makes that sibling's transits arrive slightly early or late. The pattern of these deviations betrays the hidden planet's mass and orbit.
How Far Away Is KOI-319 c?
KOI-319 c is 2,153.1 light-years (660.1 parsecs) from Earth. Light arriving here tonight left the planet about 2,153 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 37,894,560 years to make the journey.
The Host Star: KOI-319
KOI-319
- Surface temperature
- 5,880 K (Sun: 5,772 K)
- Mass
- 1.33 M☉
- Radius
- 2.06 R☉
The KOI-319 Planetary System
KOI-319 c is one of 2 known planets in the KOI-319 system. Its siblings:
- KOI-319 b (Cold Gas Giant)
KOI-319 c — Complete Data
| Mass | 8,803.85 Earth masses (27.700 Jupiter masses) |
|---|---|
| Orbital period | 80.10 days |
| Eccentricity | 0.032 |
| Distance from Earth | 2,153.1 light-years (660.1 parsecs) |
| Constellation | Cygnus |
| Discovery method | Transit Timing Variations |
| Discovery facility | Kepler |
| Discovery year | 2014 |
Data: NASA Exoplanet Archive, last updated 2026-08-20. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About KOI-319 c
Is KOI-319 c habitable?
KOI-319 c is not known to orbit within the habitable zone of KOI-319.
How far away is KOI-319 c?
KOI-319 c is about 2,153 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 37,894,560 years to get there.
How long is a year on KOI-319 c?
One orbit around KOI-319 takes 80.1 Earth days.
Explore KOI-319 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.
