What it’s like to stand here
Kepler-50 c
weight
1.74 g
sun
18.1× wider
sky
bright white

Illustration computed from this world’s measured and derived values, not a photograph.

Kepler-50 c

Kepler-50 c is a confirmed sub-Neptune exoplanet 816 ly from Earth in the constellation Cygnus, discovered in 2012 by Kepler.

ESI 0.20816 lyDiscovered in 2012 by KeplerDisputed detection

Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.

Kepler-50
host star
2.17 R⊕
radius
8.20 M⊕
mass · measured
9.4 days
orbital period
852°C (1565°F)
avg temp
Human scale

Standing on Kepler-50 c, you would weigh about 74% more than you do on Earth. Its yellow-white star looks 18.1× wider than ours, bathing the surface in bright 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 9.4 days, and at an estimated 852°C (1565°F) it is furnace-hot.

1.74 g
your weight (measured mass)
9.4 days
one year, in Earth time
18.1× wider
how big its sun looks vs ours
bright white
midday sky tint
0.6×
how high you could jump vs Earth
likely
likely tidally locked: probably eternal day on one side, night on the other
Calculate your exact weight on Kepler-50 c
Earth Similarity Index0.20#3,899 of 5,788 ranked worlds

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
EARTH HEIGHT≈ 0.89xEARTH-RAISEDRAISED HERE
about 0.89x as tall as on Earth · a 5 ft 10 in adult could stand nearer 5 ft 3 in

A little heavier than home, at 1.7 times Earth's gravity. A child raised here would likely grow a little shorter and sturdier than their Earth-raised parents, about 0.89x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 3 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 high and thin, almost cartoonish.

Assuming Earth-like air at this world's temperature of about 852°C (1565°F), sound would travel roughly 98% faster than on Earth, so your voice would sound high and thin, almost cartoonish. The real atmosphere is unknown, so this is a best guess.

sound speed ≈ 672 m/s · 1.98× Earth · assumes Earth-like air

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.

The journey
Cosmic travel advisory
☆☆☆☆
Do not travel
  • !Furnace-hot at around 852°C (1565°F), with no liquid water and no shade anywhere.
  • !Noticeably heavy, 1.7 times Earth's gravity.
  • !Its star delivers about 388 times the sunlight Earth gets, a blinding, sterilizing glare.
  • !Likely tidally locked: one hemisphere in endless day, the other in permanent night.

A playful read of Kepler-50 c’s measured and computed values, not a real advisory.

How long to get there · 816 ly away
Jet airliner
978 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
1.3 million years
dies en route1000-yr cryo: fails
Light speed
816 years
dies en route1000-yr cryo: survives
Warp 10
298 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthKepler-50 c is 2.2× the width of Earth
Explore from here · roam the neighborhood

Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.

Can you see it tonight? · observe
SMALL TELESCOPE NEEDED
Host-star brightnessmag 10.5
ConstellationCygnus
To see the host star4-6" (100-150 mm) telescope
Gear bridge

Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.

Common questions

What is the gravity on Kepler-50 c?

Kepler-50 c's surface gravity is about 1.7 times Earth's.

How much would you weigh on Kepler-50 c?

Someone who weighs 150 pounds on Earth would weigh about 261 pounds on Kepler-50 c.

How far is Kepler-50 c from Earth?

Kepler-50 c lies about 816 light-years from Earth.

How long would it take to get to Kepler-50 c?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 1.3 million years.

How hot is Kepler-50 c?

Kepler-50 c's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 852°C (1565°F).

How long is a year on Kepler-50 c?

Kepler-50 c completes one orbit of its star in 9.4 days.

Illustration generated from Kepler-50 c's confirmed parameters, not a photograph.