- weight
- ≥ 1.14 g
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
HD 158259 d
HD 158259 d is a confirmed sub-Neptune exoplanet 88.2 ly from Earth in the constellation Draco, discovered in 2020 by Haute-Provence Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Standing on HD 158259 d, you would weigh roughly about 14% more than you do on Earth. Bathing the surface in warm white light. A year passes in just 5.2 days.
What these mean: surface gravity · tidal locking · equilibrium temperature
If your children grew up herea playful thought experiment
Gravity close to Earth's, at about 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 much as it does on Earth.
We do not yet have a temperature for this world, and its atmosphere is unknown, so its acoustics cannot be modelled. In Earth-like air a human voice carries as you know it, and without the temperature that is as far as the physics will take us.
- Surface gravity is close to Earth's, at least 1.14 times, so you would move much as you do here.
A playful read of HD 158259 d’s measured and computed values, not a real advisory.
How long to get there · 88.2 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 158259 d?
HD 158259 d's surface gravity is at least 1.1 times Earth's, and possibly more: its mass is only a lower bound.
How much would you weigh on HD 158259 d?
Someone who weighs 150 pounds on Earth would weigh at least 171 pounds on HD 158259 d.
How far is HD 158259 d from Earth?
HD 158259 d lies about 88.2 light-years from Earth.
How long would it take to get to HD 158259 d?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 137,596 years.
How long is a year on HD 158259 d?
HD 158259 d completes one orbit of its star in 5.2 days.
Illustration generated from HD 158259 d's confirmed parameters, not a photograph.