- weight
- ≈ 1.29 g
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
K2-170 b
K2-170 b is a confirmed rocky exoplanet 1,281 ly from Earth in the constellation Aquarius, discovered in 2018 by K2.
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.
Standing on K2-170 b, you would weigh roughly about 29% more than you do on Earth. Bathing the surface in warm white light. A year passes in just 7.6 days.
What these mean: surface gravity · tidal locking · equilibrium temperature
If your children grew up herea playful thought experiment
A little heavier than home, at about 1.3 times Earth's gravity. A child raised here would likely grow a little shorter and sturdier than their Earth-raised parents, about 0.95x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 7 in, with denser bones.
- Bones
- Thick and dense
- More weight to bear forces the skeleton to grow denser and stronger all through childhood.
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.
- Surface gravity is close to Earth's, about 1.29 times, so you would move much as you do here.
A playful read of K2-170 b’s measured and computed values, not a real advisory.
How long to get there · 1,281 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 K2-170 b?
K2-170 b's surface gravity is about 1.3 times Earth's, estimated from its size.
How much would you weigh on K2-170 b?
Someone who weighs 150 pounds on Earth would weigh about 194 pounds on K2-170 b.
How far is K2-170 b from Earth?
K2-170 b lies about 1,281 light-years from Earth.
How long would it take to get to K2-170 b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 2.0 million years.
How long is a year on K2-170 b?
K2-170 b completes one orbit of its star in 7.6 days.
Illustration generated from K2-170 b's confirmed parameters, not a photograph.