What it’s like to stand here
TOI-5489 c
weight
≈ 1.33 g
sky
deep orange

Illustration computed from this world’s measured and derived values, not a photograph.

Rocky world

TOI-5489 c

TOI-5489 c is a confirmed rocky exoplanet 147 ly from Earth in the constellation Cancer, discovered in 2025 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.

TOI-5489
host star
1.28 R⊕
radius
2.18 M⊕
mass · estimated from radius
4.9 days
orbital period
263°C (505°F)
avg temp
Human scale

Standing on TOI-5489 c, you would weigh roughly about 33% more than you do on Earth. Bathing the surface in deep orange light. A year passes in just 4.9 days, and at an estimated 263°C (505°F) it is blistering.

≈ 1.33 g
your weight (mass estimated from size)
4.9 days
one year, in Earth time
sun size, needs orbit
deep orange
midday sky tint
0.8×
how high you could jump vs Earth
rotation unknown
Calculate your exact weight on TOI-5489 c
Earth Similarity Index0.52#516 of 5,788 ranked worlds

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
EARTH HEIGHT≈ 0.94xEARTH-RAISEDRAISED HERE
about 0.94x as tall as on Earth · a 5 ft 10 in adult could stand nearer 5 ft 6 in

A little heavier than home, at about 1.3 times Earth's gravity. A child raised here would likely grow a little shorter and sturdier than their Earth-raised parents, about 0.94x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 6 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 263°C (505°F), sound would travel roughly 36% 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.

sound speed ≈ 464 m/s · 1.36× Earth · assumes Earth-like air

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.

The journey
Cosmic travel advisory
★★★☆☆
For seasoned travelers
  • !Blistering at about 263°C (505°F), far too hot for liquid water on the surface.
  • Surface gravity is close to Earth's, about 1.33 times, so you would move much as you do here.

A playful read of TOI-5489 c’s measured and computed values, not a real advisory.

How long to get there · 147 ly away
Jet airliner
176 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
229,365 years
dies en route1000-yr cryo: fails
Light speed
147 years
dies en route1000-yr cryo: survives
Warp 10
54 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthTOI-5489 c is 1.3× the width of Earth
Explore from here · roam the neighborhood

Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.

Can you see it tonight? · observe
MID-SIZE TELESCOPE NEEDED
Host-star brightnessmag 13.8
ConstellationCancer
To see the host star8-10" (200-250 mm) telescope
Gear bridge

Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.

Common questions

What is the gravity on TOI-5489 c?

TOI-5489 c's surface gravity is about 1.3 times Earth's, estimated from its size.

How much would you weigh on TOI-5489 c?

Someone who weighs 150 pounds on Earth would weigh about 200 pounds on TOI-5489 c.

How far is TOI-5489 c from Earth?

TOI-5489 c lies about 147 light-years from Earth.

How long would it take to get to TOI-5489 c?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 229,365 years.

How hot is TOI-5489 c?

TOI-5489 c's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 263°C (505°F).

How long is a year on TOI-5489 c?

TOI-5489 c completes one orbit of its star in 4.9 days.

Illustration generated from TOI-5489 c's confirmed parameters, not a photograph.