What it’s like to stand here
EPIC 211945201 b
weight
0.33 g
sun
9.3× wider
sky
bright white

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

EPIC 211945201 b

EPIC 211945201 b is a confirmed Neptune-like exoplanet 593 ly from Earth in the constellation Cancer, discovered in 2018 by K2.

ESI 0.16593 lyDiscovered in 2018 by K2

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

EPIC 211945201
host star
5.76 R⊕
radius
11.00 M⊕
mass · measured
19 days
orbital period
544°C (1011°F)
avg temp
Human scale

EPIC 211945201 b is a giant ball of gas with no solid surface to stand on; you would simply sink into ever-thicker cloud. Its yellow-white star looks 9.3× wider than ours, bathing the cloud tops in bright white light. A year passes in just 19 days, and at an estimated 544°C (1011°F) it is furnace-hot.

0.33 g
surface gravity (no solid surface · measured mass)
19 days
one year, in Earth time
9.3× wider
how big its sun looks vs ours
bright white
midday sky tint
3.0×
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 EPIC 211945201 b
Earth Similarity Index0.16#4,439 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
NO GROUND: A DRIFTER, NOT A WALKER

There is no ground here to grow up on, only bottomless sky. A child could never stand, walk, or even fall to a surface, because there isn't one. Under 0.3 times Earth's gravity and pressure that only climbs the deeper you go, anything built for this world would not look human at all: picture something closer to a deep-sea creature than a person, broad and buoyant, drifting through the cloud decks with no need for legs and no floor to land on.

Body plan
Floating, not upright
With no surface and no fixed up or down, a skeleton built for standing would be useless; a drifting, gas-filled body would not.
Build
Broad and pressure-hardened
Pressure rises without limit toward the interior, so anything alive would have to be built like a deep-sea animal, not a land one.

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 a thin, helium-fast squeak.

There is no surface to stand on; this is the sound at the cloud tops, where the air is mostly hydrogen and helium, the lightest gases there are. Sound races through them at about 2,033 metres per second, 6 times its Earth speed, flipping a voice into a thin, cartoon-helium squeak. The temperature behind that number is this world's computed equilibrium temperature; its real atmosphere is unknown. The demo plays the shift capped at 1.8x; the real effect would be even stronger.

sound speed ≈ 2033 m/s · 5.98× Earth

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 544°C (1011°F), with no liquid water and no shade anywhere.
  • !There is nowhere to land: no ground, no deck, only cloud that thickens into crushing pressure.
  • !Its star delivers about 101 times the sunlight Earth gets, a blinding, sterilizing glare.
  • !Earth-similarity index 0.16: this world has almost nothing in common with our own.

A playful read of EPIC 211945201 b’s measured and computed values, not a real advisory.

How long to get there · 593 ly away
Jet airliner
711 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
924,213 years
dies en route1000-yr cryo: fails
Light speed
593 years
dies en route1000-yr cryo: survives
Warp 10
216 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthEPIC 211945201 b is 5.8× 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 10.2
ConstellationCancer
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 EPIC 211945201 b?

EPIC 211945201 b is a gas giant with no solid surface to stand on. At its cloud tops, gravity pulls about 0.33 times as hard as Earth's.

How far is EPIC 211945201 b from Earth?

EPIC 211945201 b lies about 593 light-years from Earth.

How long would it take to get to EPIC 211945201 b?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 924,213 years.

How hot is EPIC 211945201 b?

EPIC 211945201 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 544°C (1011°F).

How long is a year on EPIC 211945201 b?

EPIC 211945201 b completes one orbit of its star in 19 days.

Illustration generated from EPIC 211945201 b's confirmed parameters, not a photograph.