What it’s like to stand here
Kepler-1636 b
weight
≈ 1.01 g
sun
about the same
sky
warm white

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

Sub-Neptune · likely temperate

Kepler-1636 b

Kepler-1636 b is a confirmed sub-Neptune exoplanet 6,352 ly from Earth in the constellation Cygnus, discovered in 2016 by Kepler.

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

Kepler-1636 →
host star
3.23 R⊕
radius
10.50 M⊕
mass · estimated from radius
425 days
orbital period
-25°C (-13°F)
avg temp
Human scale

Standing on Kepler-1636 b, you would weigh roughly almost exactly what you weigh on Earth. Its yellow, Sun-like star looks about the same size as ours, bathing the surface in warm white light. A year here lasts 425 days, and at an estimated -25°C (-13°F) it is cold.

≈ 1.01 g
your weight (mass estimated from size)
CALCULATEDESTIMATED
425 days
one year, in Earth time
CALCULATED
about the same
how big its sun looks vs ours
warm white
midday sky tint
1.0×
how high you could jump vs Earth
CALCULATED
normal
day/night cycle (not tidally locked)
Calculate your exact weight on Kepler-1636 b →
Earth Similarity Index0.68CALCULATED#170 of 5,873 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 · habitable zone

If your children grew up herea playful thought experiment
EARTH HEIGHT≈ 1.00xEARTH-RAISEDRAISED HERE
much like Earth height

Gravity close to Earth's, at about 1.0 times. A child would grow up much as they would back home.

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 demoEXPERIMENTAL · just for fun

Your voice would sound much as it does on Earth.

Assuming Earth-like air at this world's temperature of about -25°C (-13°F), sound would travel roughly 7% slower than on Earth, so your voice would sound much as it does on Earth. The real atmosphere is unknown, so this is a best guess.

sound speed ≈ 316 m/s · 0.93× 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
★★★★☆
Recommended, with reservations
  • Surface temperatures near -25°C (-13°F) fall in the range where liquid water is at least possible.
  • Surface gravity is close to Earth's, about 1.01 times, so you would move much as you do here.

A playful read of Kepler-1636 b’s measured and computed values, not a real advisory.

How long to get there · 6,352 ly awayCALCULATED
Jet airliner
7.6 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
9.9 million years
dies en route1000-yr cryo: fails
Light speed
6,352 years
dies en route1000-yr cryo: fails
Warp 10
6 years
arrives, just older
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthKepler-1636 b is 3.2× 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
LARGE TELESCOPE NEEDED
Host-star brightnessmag 15.8
ConstellationCygnus →
To see the host star10"+ (250 mm) telescope, dark sky
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-1636 b?

Kepler-1636 b's surface gravity is about 1.0 times Earth's, estimated from its size.

How much would you weigh on Kepler-1636 b?

Someone who weighs 150 pounds on Earth would weigh about 151 pounds on Kepler-1636 b.

How far is Kepler-1636 b from Earth?

Kepler-1636 b lies about 6,352 light-years from Earth.

How long would it take to get to Kepler-1636 b?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 9.9 million years.

How hot is Kepler-1636 b?

Kepler-1636 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about -25°C (-13°F).

Is Kepler-1636 b habitable?

Kepler-1636 b orbits near its star's habitable zone, the range of distances where liquid water could be stable, and its Earth-similarity index is 0.68. That makes it worth studying, but it is not evidence of life: we have no measurement of its atmosphere, water, or surface.

How long is a year on Kepler-1636 b?

Kepler-1636 b completes one orbit of its star in 425 days.

Illustration generated from Kepler-1636 b's confirmed parameters, not a photograph.