- weight
- ≈ 0.43 g
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
Kepler-963 c
Kepler-963 c is a confirmed rocky exoplanet 2,516 ly from Earth in the constellation Cygnus, discovered in 2024 by Kepler.
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.
Standing on Kepler-963 c, you would weigh roughly about 57% less than you do on Earth. Bathing the surface in warm white light. A year passes in just 22.1 hours.
What these mean: surface gravity · tidal locking · equilibrium temperature
If your children grew up herea playful thought experiment
Low gravity, about 0.43 times Earth's. A child who grew up here could become strikingly tall and lightly built, about 1.2x taller than on Earth: a 5 ft 10 in adult could stand nearer 6 ft 11 in, with long limbs and slender bones.
- Bones
- Light and slender
- With little weight to carry, the growing skeleton lays down far less bone, the way astronauts' bones thin in months of low gravity.
- Heart
- Unhurried
- With less weight pulling blood down toward the feet, the heart has far less work to do.
- Movement
- Bounding and springy
- So little weight means each step would carry the body up and forward in long, floating strides.
A playful thought experiment from this world’s gravity, not a prediction about any real person. No human has ever grown up off Earth, so no one truly knows; the direction (taller in low gravity, shorter and stockier in high) follows how growing bodies respond to weight.
Hear how a voice sounds herea computed acoustic demo
Your voice would sound much as it does on Earth.
We do not yet have a temperature for this world, and its atmosphere is unknown, so its acoustics cannot be modelled. In Earth-like air a human voice carries as you know it, and without the temperature that is as far as the physics will take us.
- !Low gravity, about 0.43 times Earth's, would hold only a thin, unbreathable atmosphere at best.
A playful read of Kepler-963 c’s measured and computed values, not a real advisory.
How long to get there · 2,516 ly away
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
What is the gravity on Kepler-963 c?
Kepler-963 c's surface gravity is about 0.43 times Earth's, estimated from its size.
How much would you weigh on Kepler-963 c?
Someone who weighs 150 pounds on Earth would weigh about 65 pounds on Kepler-963 c.
How far is Kepler-963 c from Earth?
Kepler-963 c lies about 2,516 light-years from Earth.
How long would it take to get to Kepler-963 c?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 3.9 million years.
How long is a year on Kepler-963 c?
Kepler-963 c completes one orbit of its star in 22.1 hours.
Illustration generated from Kepler-963 c's confirmed parameters, not a photograph.