- weight
- ≥ 59.17 g
- sun
- 3.1× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
Kepler-37 e
Kepler-37 e is a confirmed rocky exoplanet 208 ly from Earth in the constellation Lyra, discovered in 2014 by Kepler.
Transit Timing Variations: inferred from the gravitational tug it puts on a sibling planet’s transit timing.
Standing on Kepler-37 e, you would weigh roughly about 5817% more than you do on Earth. Its yellow, Sun-like star looks 3.1× wider than ours, bathing the surface in warm white 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 51 days, and at an estimated 128°C (262°F) it is blistering.
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
Beyond about four times Earth's gravity, a growing child's skeleton could not carry its own weight. A human body simply could not develop here, even sheltered indoors. The shape below is only where the trend points before biology gives out: short, and impossibly dense.
- Bones
- Thick and dense
- More weight to bear forces the skeleton to grow denser and stronger all through childhood.
- Heart
- Large and powerful
- Pushing blood upward against stronger gravity demands a bigger, harder-working heart.
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 noticeably higher and reedier.
Assuming Earth-like air at this world's temperature of about 128°C (262°F), sound would travel roughly 18% faster than on Earth, so your voice would sound noticeably higher and reedier. The real atmosphere is unknown, so this is a best guess.
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.
- !Persistently hot at around 128°C (262°F), well above anything you would call comfortable.
- !Gravity is at least 59.2 times Earth's, near the limit at which a person can stand or walk at all.
- !Earth-similarity index 0.17: this world has almost nothing in common with our own.
- !Likely tidally locked: one hemisphere in endless day, the other in permanent night.
A playful read of Kepler-37 e’s measured and computed values, not a real advisory.
How long to get there · 208 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-37 e?
Kepler-37 e's surface gravity is at least 59 times Earth's, and possibly more: its mass is only a lower bound.
How much would you weigh on Kepler-37 e?
Someone who weighs 150 pounds on Earth would weigh at least 8,875 pounds on Kepler-37 e.
How far is Kepler-37 e from Earth?
Kepler-37 e lies about 208 light-years from Earth.
How long would it take to get to Kepler-37 e?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 325,149 years.
How hot is Kepler-37 e?
Kepler-37 e's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 128°C (262°F).
How long is a year on Kepler-37 e?
Kepler-37 e completes one orbit of its star in 51 days.
Illustration generated from Kepler-37 e's confirmed parameters, not a photograph.