What it’s like to stand here
DENIS-P J082303.1-491201 b
weight
63.96 g

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

DENIS-P J082303.1-491201 b

DENIS-P J082303.1-491201 b is a confirmed gas-giant exoplanet 67.7 ly from Earth in the constellation Vela, discovered in 2013 by Paranal Observatory.

Astrometry: spotted by the side-to-side wobble it makes its star trace across the sky.

DENIS-P J082303.1-491201
host star
11.90 R⊕
radius
9,058 M⊕
mass · measured
246 days
orbital period
avg temp
Human scale

DENIS-P J082303.1-491201 b is a giant ball of gas with no solid surface to stand on; you would simply sink into ever-thicker cloud. A year passes in just 246 days.

63.96 g
surface gravity (no solid surface · measured mass)
246 days
one year, in Earth time
sun size, needs orbit
sky color, needs star temp
0.0×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
Calculate your exact weight on DENIS-P J082303.1-491201 b

What these mean: surface gravity · tidal locking · equilibrium temperature

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 64.0 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, and we have no temperature for this world, so its cloud-top acoustics cannot be modelled. In hydrogen-helium air sound races, so a voice would leap to a thin, almost cartoonish squeak.

The journey
Cosmic travel advisory
☆☆☆☆
Do not travel
  • !There is nowhere to land: no ground, no deck, only cloud that thickens into crushing pressure.

A playful read of DENIS-P J082303.1-491201 b’s measured and computed values, not a real advisory.

How long to get there · 67.7 ly away
Jet airliner
81.2 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
105,652 years
dies en route1000-yr cryo: fails
Light speed
68 years
dies en route1000-yr cryo: survives
Warp 10
25 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthDENIS-P J082303.1-491201 b is 12× 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.

Common questions

What is the gravity on DENIS-P J082303.1-491201 b?

DENIS-P J082303.1-491201 b is a gas giant with no solid surface to stand on. At its cloud tops, gravity pulls about 64 times as hard as Earth's.

How far is DENIS-P J082303.1-491201 b from Earth?

DENIS-P J082303.1-491201 b lies about 67.7 light-years from Earth.

How long would it take to get to DENIS-P J082303.1-491201 b?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 105,652 years.

How long is a year on DENIS-P J082303.1-491201 b?

DENIS-P J082303.1-491201 b completes one orbit of its star in 246 days.

Illustration generated from DENIS-P J082303.1-491201 b's confirmed parameters, not a photograph.