- weight
- 1.07 g
- sun
- 11.3× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
HD 3167 d
HD 3167 d is a confirmed sub-Neptune exoplanet 154 ly from Earth in the constellation Pisces, discovered in 2017 by Multiple Observatories.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Standing on HD 3167 d, you would weigh about 7% more than you do on Earth. Its yellow, Sun-like star looks 11.3× 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 8.4 days, and at an estimated 592°C (1097°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
Gravity close to Earth's, at 1.1 times. A child would grow up much as they would back home.
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 592°C (1097°F), sound would travel roughly 73% 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 592°C (1097°F), with no liquid water and no shade anywhere.
- Surface gravity is close to Earth's, 1.07 times, so you would move much as you do here.
- !Its star delivers about 89 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 3167 d’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 d?
HD 3167 d's surface gravity is about 1.1 times Earth's.
How much would you weigh on HD 3167 d?
Someone who weighs 150 pounds on Earth would weigh about 161 pounds on HD 3167 d.
How far is HD 3167 d from Earth?
HD 3167 d lies about 154 light-years from Earth.
How long would it take to get to HD 3167 d?
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 d?
HD 3167 d's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 592°C (1097°F).
How long is a year on HD 3167 d?
HD 3167 d completes one orbit of its star in 8.4 days.
Illustration generated from HD 3167 d's confirmed parameters, not a photograph.