What it’s like to stand here
Kepler-385 b
weight
1.72 g
sun
11.6× wider
sky
warm white

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

Kepler-385 b

Kepler-385 b is a confirmed sub-Neptune exoplanet 4,673 ly from Earth in the constellation Cygnus, discovered in 2014 by Kepler.

ESI 0.244,673 lyDiscovered in 2014 by Kepler

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

Kepler-385
host star
2.73 R⊕
radius
12.80 M⊕
mass · measured
10 days
orbital period
678°C (1252°F)
avg temp
Human scale

Standing on Kepler-385 b, you would weigh about 72% more than you do on Earth. Its yellow, Sun-like star looks 11.6× 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 10 days, and at an estimated 678°C (1252°F) it is furnace-hot.

1.72 g
your weight (measured mass)
10 days
one year, in Earth time
11.6× wider
how big its sun looks vs ours
warm 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-385 b
Earth Similarity Index0.24#3,390 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≈ 0.90xEARTH-RAISEDRAISED HERE
about 0.90x 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 0.90x 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 678°C (1252°F), sound would travel roughly 82% 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 ≈ 618 m/s · 1.82× 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 678°C (1252°F), with no liquid water and no shade anywhere.
  • !Noticeably heavy, 1.7 times Earth's gravity.
  • !Its star delivers about 144 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-385 b’s measured and computed values, not a real advisory.

How long to get there · 4,673 ly away
Jet airliner
5.6 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
7.3 million years
dies en route1000-yr cryo: fails
Light speed
4,673 years
dies en route1000-yr cryo: fails
Warp 10
5 years
arrives, just older
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthKepler-385 b is 2.7× 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
FAINT: 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-385 b?

Kepler-385 b's surface gravity is about 1.7 times Earth's.

How much would you weigh on Kepler-385 b?

Someone who weighs 150 pounds on Earth would weigh about 258 pounds on Kepler-385 b.

How far is Kepler-385 b from Earth?

Kepler-385 b lies about 4,673 light-years from Earth.

How long would it take to get to Kepler-385 b?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 7.3 million years.

How hot is Kepler-385 b?

Kepler-385 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 678°C (1252°F).

How long is a year on Kepler-385 b?

Kepler-385 b completes one orbit of its star in 10 days.

Illustration generated from Kepler-385 b's confirmed parameters, not a photograph.