Plate No. 1,736 — in order of discoveryEntered 2026-08-20

KOI-319 c

A unmeasured gas giant world orbiting KOI-319, 2,153 ly from Earth. One of 2 charted worlds in its system.

Enter the system →Find it in the night sky →

The light now arriving from KOI-319 set out around 127 BCE.

2 worlds1s = 1s

Orbit shapes and relative timing are true — worlds sweep faster near their star, as Kepler demands. Spacing is drawn to true scale when the system allows; wide systems open compressed so inner and outer worlds share the page. Dashed orbits are derived from period alone.

The measures

Earth

1.0 R⊕

KOI-319 c

11.9 R⊕

Jupiter

11.2 R⊕

Life outlook

Unknown

Not yet judgeable

Warmth: unmeasured · weight 40%
Size: 0 · weight 30%
Star: 99 · weight 20%
Orbit: 98 · weight 10%

A strict Earth-similarity index, not a detection: every factor peaks at Earth's own value and they multiply, so one hostile factor sinks the score — only a true Earth twin would reach 100. Equilibrium temperature ignores atmospheres, which can warm a cold world into comfort, or turn a Venus into a furnace.

The world

Class: Gas Giant
Radius: 11.9 R⊕
Mass: 8,804 M⊕
Density: 28.7 g/cm³
Equilibrium temperature: —
Starlight received: —

The orbit

Period: 80.099 days
Semi-major axis: —
Eccentricity: 0.032

The star

Host: KOI-319
Spectral type: —
Temperature: 5,880 K
Radius: 2.06 R☉
Mass: 1.33 M☉

The system

Distance: 2,153 ly · 660.1 pc
Known planets: 2
Stars: 1
Coordinates: RA 290.12° · Dec 44.87°

The observation

Star brightness: V 12.7 · telescope
Atmospheric spectra: none yet
Stellar age: 3.9 Gyr

The record

Method: Transit Timing Variations
Facility: Kepler
Discovery: 2014
Parameters published: —