What it’s like to stand here
Proxima Cen d
- weight
- ≥ 0.54 g
- sun
- 4.9× wider
- sky
- dim red
Illustration computed from this world’s measured and derived values, not a photograph.
Rocky world
Proxima Cen d
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Proxima Cen →
host star
0.69 R⊕
radius
0.26 M⊕
mass · minimum (m·sin i)
5.1 days
orbital period
9°C (48°F)
avg temp
What it's like to stand here
≥ 0.54 g
your weight (minimum mass only)
5.1 days
one year, in Earth time
4.9× wider
how big its sun looks vs ours
dim red
midday sky tint
1.8×
how high you could jump vs Earth
likely
likely tidally locked: probably eternal day on one side, night on the other
How long to get there · 4.2 ly away
Jet airliner
5.1 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
6,619 years
dies en route1000-yr cryo: fails
Light speed
4 years
arrives, just older
Warp 10
2 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
Triple systemProxima Cen
M5.5 V · 2 planets
Sibling worlds in this system
Nearby star systems
Similar worlds (size · gravity · star)
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
Gear bridge
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
Illustration generated from Proxima Cen d's confirmed parameters, not a photograph.