Confirmed exoplanet · Database record + computed analysis
KOI-142 c
A confirmed world orbiting KOI-142, 1,229.2 light-years away.
A gas giant
14.00 Earth radii, Jupiter-class (Jupiter is 11.2). At only 214.1 Earth masses for that size, it must be substantially gas or volatile ices: puffy, not rocky.
The orbit
Its year, one full orbit, takes just 22.3 Earth days.
Temperature and starlight
Its equilibrium temperature (the airless-world estimate) is about 363 °C. Above water's boiling point. It receives 28.8 times the starlight Earth gets.
Its sun
Its star is Sun-like (5,466 K, G; the Sun is 5,772 K). It shares the system with 2 other known planets.
How far is that, really?
At 1,229 light-years, tonight's light from this system left it around the year 796. A Voyager-speed probe would need roughly 21,747,075 years to get there.
How we found it
It was found through transit timing variations: its gravity nudges a sibling planet's transits early and late, betraying its presence without ever being seen directly. The discovery was announced in 2013 from Kepler.
Everything above is computed from the archive’s measured values for this planet. Where a quantity is missing, the statement is omitted rather than guessed.
About this record
The measured values come from the NASA Exoplanet Archive, and any missing value has not been determined yet; the Atlas never fills gaps with guesses. More standout worlds: Proxima b, TRAPPIST-1e, K2-18 b, 55 Cancri e, and the detection methods that found them all.