Confirmed exoplanet · Database record + computed analysis
Kepler-63 b
A confirmed world orbiting Kepler-63, 632.9 light-years away.
A Neptune-class world
6.11 Earth radii, in the ice-giant size range.
The orbit
Its year, one full orbit, takes just 9.4 Earth days. The orbit is strongly stretched (eccentricity 0.45), 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 518 °C. Hotter than Venus's surface. It receives 100.4 times the starlight Earth gets.
Its sun
Its star is Sun-like (5,576 K, G5; the Sun is 5,772 K).
How far is that, really?
At 633 light-years, tonight's light from this system left it around the year 1393. A Voyager-speed probe would need roughly 11,196,775 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 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.