- weight
- 1.87 g
- sun
- 21.6× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
HIP 29442 c
HIP 29442 c is a confirmed rocky exoplanet 222 ly from Earth in the constellation Lepus, discovered in 2023 by Paranal Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Standing on HIP 29442 c, you would weigh about 87% more than you do on Earth. Its yellow, Sun-like star looks 21.6× 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 3.5 days, and at an estimated 850°C (1562°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
A little heavier than home, at 1.9 times Earth's gravity. A child raised here would likely grow a little shorter and sturdier than their Earth-raised parents, about 0.88x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 2 in, with denser bones.
- Bones
- Thick and dense
- More weight to bear forces the skeleton to grow denser and stronger all through childhood.
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 850°C (1562°F), sound would travel roughly 97% 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 850°C (1562°F), with no liquid water and no shade anywhere.
- !Noticeably heavy, 1.9 times Earth's gravity.
- !Its star delivers about 451 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 HIP 29442 c’s measured and computed values, not a real advisory.
How long to get there · 222 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 HIP 29442 c?
HIP 29442 c's surface gravity is about 1.9 times Earth's.
How much would you weigh on HIP 29442 c?
Someone who weighs 150 pounds on Earth would weigh about 281 pounds on HIP 29442 c.
How far is HIP 29442 c from Earth?
HIP 29442 c lies about 222 light-years from Earth.
How long would it take to get to HIP 29442 c?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 346,876 years.
How hot is HIP 29442 c?
HIP 29442 c's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 850°C (1562°F).
How long is a year on HIP 29442 c?
HIP 29442 c completes one orbit of its star in 3.5 days.
Illustration generated from HIP 29442 c's confirmed parameters, not a photograph.