- weight
- 1.12 g
Illustration computed from this world’s measured and derived values, not a photograph.
KMT-2017-BLG-0428L b
KMT-2017-BLG-0428L b is a confirmed sub-Neptune exoplanet 17,612 ly from Earth in the constellation Sagittarius, discovered in 2023 by KMTNet.
Microlensing: spotted when its gravity briefly magnified the light of a more distant star.
Standing on KMT-2017-BLG-0428L b, you would weigh about 12% more than you do on Earth.
What these mean: surface gravity · tidal locking · equilibrium temperature
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 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, 1.12 times, so you would move much as you do here.
A playful read of KMT-2017-BLG-0428L b’s measured and computed values, not a real advisory.
How long to get there · 17,612 ly away
No other confirmed planets here yet. New ones auto-appear as telescopes report.
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
What is the gravity on KMT-2017-BLG-0428L b?
KMT-2017-BLG-0428L b's surface gravity is about 1.1 times Earth's.
How much would you weigh on KMT-2017-BLG-0428L b?
Someone who weighs 150 pounds on Earth would weigh about 169 pounds on KMT-2017-BLG-0428L b.
How far is KMT-2017-BLG-0428L b from Earth?
KMT-2017-BLG-0428L b lies about 17,612 light-years from Earth.
How long would it take to get to KMT-2017-BLG-0428L b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 27.5 million years.
Illustration generated from KMT-2017-BLG-0428L b's confirmed parameters, not a photograph.