What it’s like to stand here
G 264-012 b
weight
≥ 1.29 g
sun
13.4× wider
sky
deep orange

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

Rocky world

G 264-012 b

G 264-012 b is a confirmed rocky exoplanet 52.2 ly from Earth in the constellation Cepheus, discovered in 2021 by Calar Alto Observatory.

Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.

G 264-012
host star
1.39 R⊕
radius
2.50 M⊕
mass · minimum (m·sin i)
2.3 days
orbital period
314°C (597°F)
avg temp
Human scale

Standing on G 264-012 b, you would weigh roughly about 29% more than you do on Earth. Its red dwarf looks 13.4× wider than ours, bathing the surface in deep orange 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 2.3 days, and at an estimated 314°C (597°F) it is blistering.

≥ 1.29 g
your weight (minimum mass only)
2.3 days
one year, in Earth time
13.4× wider
how big its sun looks vs ours
deep orange
midday sky tint
0.8×
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 G 264-012 b
Earth Similarity Index0.47#759 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≈ 0.95xEARTH-RAISEDRAISED HERE
about 0.95x as tall as on Earth · a 5 ft 10 in adult could stand nearer 5 ft 7 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 0.95x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 7 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 314°C (597°F), sound would travel roughly 43% 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 ≈ 486 m/s · 1.43× 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 314°C (597°F), far too hot for liquid water on the surface.
  • Surface gravity is close to Earth's, at least 1.29 times, so you would move much as you do here.
  • !Likely tidally locked: one hemisphere in endless day, the other in permanent night.

A playful read of G 264-012 b’s measured and computed values, not a real advisory.

How long to get there · 52.2 ly away
Jet airliner
62.6 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
81,434 years
dies en route1000-yr cryo: fails
Light speed
52 years
arrives elderly
Warp 10
19 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthG 264-012 b is 1.4× 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
MID-SIZE TELESCOPE NEEDED
Host-star brightnessmag 13.1
ConstellationCepheus
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 G 264-012 b?

G 264-012 b's surface gravity is at least 1.3 times Earth's, and possibly more: its mass is only a lower bound.

How much would you weigh on G 264-012 b?

Someone who weighs 150 pounds on Earth would weigh at least 194 pounds on G 264-012 b.

How far is G 264-012 b from Earth?

G 264-012 b lies about 52.2 light-years from Earth.

How long would it take to get to G 264-012 b?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 81,434 years.

How hot is G 264-012 b?

G 264-012 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 314°C (597°F).

How long is a year on G 264-012 b?

G 264-012 b completes one orbit of its star in 2.3 days.

Illustration generated from G 264-012 b's confirmed parameters, not a photograph.