- weight
- ≈ 1.18 g
- sky
- bright white
Illustration computed from this world’s measured and derived values, not a photograph.
TOI-5177 b
TOI-5177 b is a confirmed sub-Neptune exoplanet 505 ly from Earth in the constellation Leo, discovered in 2026 by Transiting Exoplanet Survey Satellite (TESS).
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it (what that means).
Standing on TOI-5177 b, you would weigh roughly about 18% more than you do on Earth. Bathing the surface in bright white light. A year passes in just 2.2 days, and at an estimated 1912°C (3473°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
Gravity close to Earth's, at about 1.2 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 demoEXPERIMENTAL · just for fun
Your voice would sound high and thin, almost cartoonish.
Assuming Earth-like air at this world's temperature of about 1912°C (3473°F), sound would travel roughly 175% 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 1912°C (3473°F), the daytime side glows: metals run liquid and any atmosphere is being torn away.
- Surface gravity is close to Earth's, about 1.18 times, so you would move much as you do here.
- !Its star delivers about 3,786 times the sunlight Earth gets, a blinding, sterilizing glare.
- !Earth-similarity index 0.10: this world has almost nothing in common with our own.
A playful read of TOI-5177 b’s measured and computed values, not a real advisory.
How long to get there · 505 ly awayCALCULATED
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.
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
What is the gravity on TOI-5177 b?
TOI-5177 b's surface gravity is about 1.2 times Earth's, estimated from its size.
How much would you weigh on TOI-5177 b?
Someone who weighs 150 pounds on Earth would weigh about 176 pounds on TOI-5177 b.
How far is TOI-5177 b from Earth?
TOI-5177 b lies about 505 light-years from Earth.
How long would it take to get to TOI-5177 b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 788,269 years.
How hot is TOI-5177 b?
TOI-5177 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 1912°C (3473°F).
How long is a year on TOI-5177 b?
TOI-5177 b completes one orbit of its star in 2.2 days.
Illustration generated from TOI-5177 b's confirmed parameters, not a photograph.