Confirmed exoplanet · Database record + computed analysis
Kepler-1621 b
A confirmed world orbiting Kepler-1621, 5,321.8 light-years away.
A sub-Neptune
2.16 Earth radii, likely a rocky core under a thick gas or steam envelope rather than a walkable surface.
The orbit
Its year takes 92 Earth days (0.3 Earth years).
Temperature and starlight
Its equilibrium temperature (the airless-world estimate) is about 196 °C. Above water's boiling point. It receives 14.1 times the starlight Earth gets.
Its sun
Its star is hotter than the Sun (6,158 K), burning brighter and faster.
How far is that, really?
At 5,322 light-years, tonight's light from this system left it around the year -3295. A Voyager-speed probe would need roughly 94,155,785 years to get there.
How we found it
It was found by the transit method: the planet crosses its star's face on schedule, dimming it by a tiny, repeating fraction. The dip's depth gives the planet's size. The discovery was announced in 2016 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.