Confirmed exoplanet · Database record + computed analysis
KOI-884 e
A confirmed world orbiting Kepler-247, 2,164.7 light-years away.
A gas giant
9.54 Earth radii, Jupiter-class (Jupiter is 11.2). At only 66.1 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 31.1 Earth days.
Its sun
Its star is an orange K-type (5,060 K), K: cooler and longer-lived than the Sun, a class some astronomers consider ideal for habitability. It shares the system with 3 other known planets.
How far is that, really?
At 2,165 light-years, tonight's light from this system left it around the year -138. A Voyager-speed probe would need roughly 38,299,787 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 2014 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.