What it’s like to stand here
TOI-1630.01
weight
≈ 1.10 g
sun
8.2× wider
sky
warm white

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

TOI-1630.01

TOI-1630.01 is a confirmed sub-Neptune exoplanet 216 ly from Earth in the constellation Cepheus, discovered in 2024 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-1630
host star
2.42 R⊕
radius
6.42 M⊕
mass · estimated from radius
12 days
orbital period
311°C (592°F)
avg temp
Human scale

Standing on TOI-1630.01, you would weigh roughly about 10% more than you do on Earth. Its yellow, Sun-like star looks 8.2× 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 12 days, and at an estimated 311°C (592°F) it is blistering.

≈ 1.10 g
your weight (mass estimated from size)
12 days
one year, in Earth time
8.2× wider
how big its sun looks vs ours
warm white
midday sky tint
0.9×
how high you could jump vs Earth
likely
likely tidally locked: probably eternal day on one side, night on the other
Calculate your exact weight on TOI-1630.01
Earth Similarity Index0.39#1,351 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≈ 0.98xEARTH-RAISEDRAISED HERE
much like Earth height

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 high and thin, almost cartoonish.

Assuming Earth-like air at this world's temperature of about 311°C (592°F), sound would travel roughly 42% 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 ≈ 484 m/s · 1.42× 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
★★☆☆☆
Reconsider travel
  • !Blistering at about 311°C (592°F), far too hot for liquid water on the surface.
  • Surface gravity is close to Earth's, about 1.10 times, so you would move much as you do here.
  • !Its star delivers about 56 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 TOI-1630.01’s measured and computed values, not a real advisory.

How long to get there · 216 ly away
Jet airliner
258 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
336,199 years
dies en route1000-yr cryo: fails
Light speed
216 years
dies en route1000-yr cryo: survives
Warp 10
79 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthTOI-1630.01 is 2.4× 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
SMALL TELESCOPE NEEDED
Host-star brightnessmag 9.6
ConstellationCepheus
To see the host star4-6" (100-150 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-1630.01?

TOI-1630.01's surface gravity is about 1.1 times Earth's, estimated from its size.

How much would you weigh on TOI-1630.01?

Someone who weighs 150 pounds on Earth would weigh about 165 pounds on TOI-1630.01.

How far is TOI-1630.01 from Earth?

TOI-1630.01 lies about 216 light-years from Earth.

How long would it take to get to TOI-1630.01?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 336,199 years.

How hot is TOI-1630.01?

TOI-1630.01's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 311°C (592°F).

How long is a year on TOI-1630.01?

TOI-1630.01 completes one orbit of its star in 12 days.

Illustration generated from TOI-1630.01's confirmed parameters, not a photograph.