What it’s like to stand here

SR 12 AB c

sky: deep orange

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

SR 12 AB c

SR 12 AB c is a confirmed gas-giant exoplanet 366 ly from Earth in the constellation Ophiuchus, discovered in 2010 by Infrared Survey Facility.

366 lyDiscovered in 2010 by Infrared Survey Facility

Imaging: photographed directly, as a faint point of light beside its star.

SR 12 AB →

host star

12.30 R⊕

radius

4,132 M⊕

mass · measured

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orbital period

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avg temp

Human scale

SR 12 AB c is a giant ball of gas with no solid surface to stand on; you would simply sink into ever-thicker cloud. Bathing the cloud tops in deep orange light.

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your weight, not stated

EXCLUDED

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one year, in Earth time

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sun size, needs orbit

deep orange

midday sky tint

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jump, needs gravity

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rotation unknown

Catalog values (NASA Exoplanet Archive): mass 4,132 M⊕, radius 12.30 R⊕. Its catalog mass and radius imply a density of 12.2 g/cm³, denser than compressed iron, so they cannot both be right, and gravityfinder does not use SR 12 AB c in gravity rankings or weight calculations.

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

If your children grew up herea playful thought experiment

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 crushing 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 demoEXPERIMENTAL · just for fun

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