- weight
- 1.89 g
- sun
- 47.2× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
HD 3167 b
HD 3167 b is a confirmed rocky exoplanet 154 ly from Earth in the constellation Pisces, discovered in 2016 by K2.
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.
Standing on HD 3167 b, you would weigh about 89% more than you do on Earth. Its yellow, Sun-like star looks 47.2× 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 23.0 hours, and at an estimated 1508°C (2746°F) it is hot enough to melt rock.
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 1508°C (2746°F), sound would travel roughly 149% 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.
- !At about 1508°C (2746°F), the daytime side glows: metals run liquid and any atmosphere is being torn away.
- !Noticeably heavy, 1.9 times Earth's gravity.
- !Its star delivers about 1,650 times the sunlight Earth gets, a blinding, sterilizing glare.
- !Earth-similarity index 0.13: this world has almost nothing in common with our own.
- !Likely tidally locked: one hemisphere in endless day, the other in permanent night.
A playful read of HD 3167 b’s measured and computed values, not a real advisory.
How long to get there · 154 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 3167 b?
HD 3167 b's surface gravity is about 1.9 times Earth's.
How much would you weigh on HD 3167 b?
Someone who weighs 150 pounds on Earth would weigh about 283 pounds on HD 3167 b.
How far is HD 3167 b from Earth?
HD 3167 b lies about 154 light-years from Earth.
How long would it take to get to HD 3167 b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 240,552 years.
How hot is HD 3167 b?
HD 3167 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 1508°C (2746°F).
How long is a year on HD 3167 b?
HD 3167 b completes one orbit of its star in 23.0 hours.
Illustration generated from HD 3167 b's confirmed parameters, not a photograph.