Confirmed exoplanet · Database record + computed analysis
2MASS J19383260+4603591 b
A confirmed world orbiting 2MASS J19383260+4603591, 1,292.7 light-years away.
A gas giant
13.40 Earth radii, Jupiter-class (Jupiter is 11.2). At only 603.9 Earth masses for that size, it must be substantially gas or volatile ices: puffy, not rocky.
The orbit
Its year takes 406 Earth days (1.1 Earth years). The orbit is strongly stretched (eccentricity 0.33), so its distance from the star, and with it the climate, swings dramatically.
Temperature and starlight
Its equilibrium temperature (the airless-world estimate) is about 396 °C. Above water's boiling point. It receives 33.3 times the starlight Earth gets.
Its sun
Its star is hotter than the Sun (29,564 K), burning brighter and faster. The system holds 2 stars, so its skies have more than one sun. It shares the system with 2 other known planets.
How far is that, really?
At 1,293 light-years, tonight's light from this system left it around the year 733. A Voyager-speed probe would need roughly 22,870,543 years to get there.
How we found it
It was inferred from eclipse timing variations in its binary star system. The discovery was announced in 2015 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.