What it’s like to stand here
GJ 667 C g
weight
≥ 1.16 g
sky
deep orange

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

GJ 667 C g

GJ 667 C g is a confirmed sub-Neptune exoplanet 23.6 ly from Earth in the constellation Scorpius, discovered in 2013 by La Silla Observatory.

23.6 lyDiscovered in 2013 by La Silla ObservatoryDisputed detection

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

GJ 667 C
host star
1.99 R⊕
radius
4.60 M⊕
mass · minimum (m·sin i)
256 days
orbital period
avg temp
Human scale

Standing on GJ 667 C g, you would weigh roughly about 16% more than you do on Earth. Bathing the surface in deep orange light. A year passes in just 256 days.

≥ 1.16 g
your weight (minimum mass only)
256 days
one year, in Earth time
sun size, needs orbit
deep orange
midday sky tint
0.9×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
Calculate your exact weight on GJ 667 C g

What these mean: surface gravity · tidal locking · equilibrium temperature

If your children grew up herea playful thought experiment
EARTH HEIGHT≈ 0.97xEARTH-RAISEDRAISED HERE
much like Earth height

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 demo

Your voice would sound deep and slow, dropped to a low bass.

Assuming Earth-like air at this world's temperature of about -155°C (-248°F), sound would travel roughly 36% slower than on Earth, so your voice would sound deep and slow, dropped to a low bass. The real atmosphere is unknown, so this is a best guess.

sound speed ≈ 218 m/s · 0.64× 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
★★★★
Recommended, with reservations
  • Surface gravity is close to Earth's, at least 1.16 times, so you would move much as you do here.

A playful read of GJ 667 C g’s measured and computed values, not a real advisory.

How long to get there · 23.6 ly away
Jet airliner
28.3 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
36,848 years
dies en route1000-yr cryo: fails
Light speed
24 years
arrives middle-aged
Warp 10
9 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
EarthGJ 667 C g is 2.0× 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 10.6
ConstellationScorpius
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 GJ 667 C g?

GJ 667 C g's surface gravity is at least 1.2 times Earth's, and possibly more: its mass is only a lower bound.

How much would you weigh on GJ 667 C g?

Someone who weighs 150 pounds on Earth would weigh at least 174 pounds on GJ 667 C g.

How far is GJ 667 C g from Earth?

GJ 667 C g lies about 23.6 light-years from Earth.

How long would it take to get to GJ 667 C g?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 36,848 years.

How long is a year on GJ 667 C g?

GJ 667 C g completes one orbit of its star in 256 days.

Illustration generated from GJ 667 C g's confirmed parameters, not a photograph.