- sun
- 12.0× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
HD 224018 b
HD 224018 b is a confirmed rocky exoplanet 344 ly from Earth in the constellation Aquarius, discovered in 2025 by Roque de los Muchachos Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star (what that means).
Its yellow, Sun-like star looks 12.0× 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 11 days, and at an estimated 695°C (1283°F) it is furnace-hot.
Catalog values (NASA Exoplanet Archive): mass 4.10 M⊕, radius 0.91 R⊕. Its catalog mass and radius imply a density of 30.0 g/cm³, denser than compressed iron, so they cannot both be right, and gravityfinder does not use HD 224018 b in gravity rankings or weight calculations.
How closely this world matches Earth in size and warmth, from 0 to 1 (Earth = 1.0). Computed by gravityfinder. See every world ranked →
What these mean: surface gravity · tidal locking · equilibrium temperature · Earth similarity
Hear how a voice sounds herea computed acoustic demoEXPERIMENTAL · just for fun
Your voice would sound high and thin, almost cartoonish.
Assuming Earth-like air at this world's temperature of about 695°C (1283°F), sound would travel roughly 83% 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 695°C (1283°F), with no liquid water and no shade anywhere.
- !Its star delivers about 147 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 224018 b’s measured and computed values, not a real advisory.
How long to get there · 344 ly awayCALCULATED
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 224018 b from Earth?
HD 224018 b lies about 344 light-years from Earth.
How long would it take to get to HD 224018 b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 536,551 years.
How hot is HD 224018 b?
HD 224018 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 695°C (1283°F).
How long is a year on HD 224018 b?
HD 224018 b completes one orbit of its star in 11 days.
Illustration generated from HD 224018 b's confirmed parameters, not a photograph.