What it’s like to stand here

PSR J1719-1438 b

sky: amber-orange

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

PSR J1719-1438 b

PSR J1719-1438 b is a confirmed sub-Neptune exoplanet 3,914 ly from Earth in the constellation Serpens, discovered in 2011 by Parkes Observatory.

3,914 lyDiscovered in 2011 by Parkes Observatory

Pulsar Timing: spotted by tiny shifts in the steady beat of its host pulsar.

PSR J1719-1438 →

host star

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radius

383 M⊕

mass · measured

2.2 hours

orbital period

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avg temp

Human scale

Bathing the surface in amber-orange 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 2.2 hours.

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gravity, needs mass + radius

2.2 hours

one year, in Earth time

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sun size, needs orbit

amber-orange

midday sky tint

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jump, needs gravity

likely

likely tidally locked: probably eternal day on one side, night on the other

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

Hear how a voice sounds herea computed acoustic demo

Your voice would sound much as it does on Earth.

We do not yet have a temperature for this world, and its atmosphere is unknown, so its acoustics cannot be modelled. In Earth-like air a human voice carries as you know it, and without the temperature that is as far as the physics will take us.

The journey

How long to get there · 3,914 ly away

Jet airliner

4.7 billion years

dies en route1000-yr cryo: fails

Parker Solar Probethe fastest craft ever built

6.1 million years

dies en route1000-yr cryo: fails

Light speed

3,914 years

dies en route1000-yr cryo: fails

Warp 10