- weight
- 1.91 g
- sun
- 11.9× wider
- sky
- amber-orange
Illustration computed from this world’s measured and derived values, not a photograph.
HD 219134 c
HD 219134 c is a confirmed rocky exoplanet 21.3 ly from Earth in the constellation Cassiopeia, discovered in 2015 by Roque de los Muchachos Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Standing on HD 219134 c, you would weigh about 91% more than you do on Earth. Its orange dwarf looks 11.9× 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 6.8 days, and at an estimated 509°C (948°F) it is furnace-hot.
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
If your children grew up herea playful thought experiment
Heavier than home, at 1.9 times Earth's gravity. A child would end up markedly shorter and powerfully built, about 0.88x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 2 in. Bones, muscle, and heart would all grow heavier just to stand and move.
- Bones
- Thick and dense
- More weight to bear forces the skeleton to grow denser and stronger all through childhood.
- Heart
- Large and powerful
- Pushing blood upward against stronger gravity demands a bigger, harder-working heart.
- Movement
- Low and deliberate
- A fall under this gravity lands hard, so movement stays slow, planted, and careful.
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 demo
Your voice would sound high and thin, almost cartoonish.
Assuming Earth-like air at this world's temperature of about 509°C (948°F), sound would travel roughly 65% 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 509°C (948°F), with no liquid water and no shade anywhere.
- !Noticeably heavy, 1.9 times Earth's gravity.
- !Its star delivers about 62 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 219134 c’s measured and computed values, not a real advisory.
How long to get there · 21.3 ly away
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
What is the gravity on HD 219134 c?
HD 219134 c's surface gravity is about 1.9 times Earth's.
How much would you weigh on HD 219134 c?
Someone who weighs 150 pounds on Earth would weigh about 286 pounds on HD 219134 c.
How far is HD 219134 c from Earth?
HD 219134 c lies about 21.3 light-years from Earth.
How long would it take to get to HD 219134 c?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 33,223 years.
How hot is HD 219134 c?
HD 219134 c's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 509°C (948°F).
How long is a year on HD 219134 c?
HD 219134 c completes one orbit of its star in 6.8 days.
Illustration generated from HD 219134 c's confirmed parameters, not a photograph.