- sun
- 4.7× wider
- sky
- amber-orange
Illustration computed from this world’s measured and derived values, not a photograph.
HD 215152 e
HD 215152 e is a confirmed sub-Neptune exoplanet 70.4 ly from Earth in the constellation Aquarius, discovered in 2018 by La Silla Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Its orange dwarf looks 4.7× wider than ours, 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 25 days, and at an estimated 245°C (472°F) it is blistering.
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 245°C (472°F), sound would travel roughly 34% 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.
- !Blistering at about 245°C (472°F), far too hot for liquid water on the surface.
- !Likely tidally locked: one hemisphere in endless day, the other in permanent night.
A playful read of HD 215152 e’s measured and computed values, not a real advisory.
How long to get there · 70.4 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 215152 e from Earth?
HD 215152 e lies about 70.4 light-years from Earth.
How long would it take to get to HD 215152 e?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 109,861 years.
How hot is HD 215152 e?
HD 215152 e's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 245°C (472°F).
How long is a year on HD 215152 e?
HD 215152 e completes one orbit of its star in 25 days.
Illustration generated from HD 215152 e's confirmed parameters, not a photograph.