- weight
- ≈ 1.34 g
- sun
- 4.8× wider
- sky
- dim red
Illustration computed from this world’s measured and derived values, not a photograph.
Kepler-445 d
Kepler-445 d is a confirmed rocky exoplanet 415 ly from Earth in the constellation Cygnus, discovered in 2015 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-445 d, you would weigh roughly about 34% more than you do on Earth. Its red dwarf looks 4.8× wider than ours, bathing the surface in dim red light. It is likely tidally locked, so that sun never moves in the sky: one hemisphere in endless day, the other in permanent night. A year passes in just 8.2 days, and at an estimated 32°C (89°F) it is warm.
How closely this world matches Earth in size and warmth, from 0 to 1 (Earth = 1.0). Computed by gravityfinder. See every world ranked →
What these mean: surface gravity · tidal locking · equilibrium temperature · Earth similarity
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 0.94x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 6 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.
Assuming Earth-like air at this world's temperature of about 32°C (89°F), sound would travel close to its Earth speed, so your voice would sound much as it does on Earth. The real atmosphere is unknown.
A real voice sample, pitch-shifted (tempo held constant) to suggest the acoustics: a playful approximation, not a precise simulation. Voice: Lingua Libre / Vealhurl, CC BY-SA 4.0.
- Surface temperatures near 32°C (89°F) fall in the range where liquid water is at least possible.
- Surface gravity is close to Earth's, about 1.34 times, so you would move much as you do here.
- A high Earth-similarity index of 0.83, among the more Earth-like worlds known.
- !Likely tidally locked: one hemisphere in endless day, the other in permanent night.
A playful read of Kepler-445 d’s measured and computed values, not a real advisory.
How long to get there · 415 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-445 d?
Kepler-445 d's surface gravity is about 1.3 times Earth's, estimated from its size.
How much would you weigh on Kepler-445 d?
Someone who weighs 150 pounds on Earth would weigh about 202 pounds on Kepler-445 d.
How far is Kepler-445 d from Earth?
Kepler-445 d lies about 415 light-years from Earth.
How long would it take to get to Kepler-445 d?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 647,041 years.
How hot is Kepler-445 d?
Kepler-445 d's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 32°C (89°F).
How long is a year on Kepler-445 d?
Kepler-445 d completes one orbit of its star in 8.2 days.
Illustration generated from Kepler-445 d's confirmed parameters, not a photograph.