- sun
- 8.6× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
HD 10180 d
HD 10180 d is a confirmed sub-Neptune exoplanet 127 ly from Earth in the constellation Hydrus, discovered in 2010 by La Silla Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Its yellow, Sun-like star looks 8.6× 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 16 days, and at an estimated 564°C (1047°F) it is furnace-hot.
What these mean: surface gravity · tidal locking · equilibrium temperature
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 564°C (1047°F), sound would travel roughly 70% 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.
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.
- !Furnace-hot at around 564°C (1047°F), with no liquid water and no shade anywhere.
- !Its star delivers about 90 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 HD 10180 d’s measured and computed values, not a real advisory.
How long to get there · 127 ly away
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
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How far is HD 10180 d from Earth?
HD 10180 d lies about 127 light-years from Earth.
How long would it take to get to HD 10180 d?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 198,184 years.
How hot is HD 10180 d?
HD 10180 d's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 564°C (1047°F).
How long is a year on HD 10180 d?
HD 10180 d completes one orbit of its star in 16 days.
Illustration generated from HD 10180 d's confirmed parameters, not a photograph.