What it’s like to stand here
Kepler-31 d
weight
142.09 g
sun
3.0× wider
sky
bright white

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

Ice / gas giant

Kepler-31 d

Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.

Kepler-31
host star
3.90 R⊕
radius
2,161 M⊕
mass · measured
88 days
orbital period
211°C (412°F)
avg temp
What it's like to stand here
142.09 g
surface gravity (no solid surface · measured mass)
88 days
one year, in Earth time
3.0× wider
how big its sun looks vs ours
bright white
midday sky tint
0.0×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 5,429 ly away
Jet airliner
6.5 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
8.5 million years
dies en route1000-yr cryo: fails
Light speed
5,429 years
dies en route1000-yr cryo: fails
Warp 10
5 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthKepler-31 d is 3.9× the width of Earth
Explore from here · roam the neighborhood
Host star
Kepler-31
6340 K host star · 3 planets
Explore →

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

Can you see it tonight? · observe
FAINT — LARGE TELESCOPE NEEDED
Host-star brightnessmag 15.5
ConstellationCygnus
To see the host star10"+ (250 mm) telescope, dark sky
Gear bridge

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

Illustration generated from Kepler-31 d's confirmed parameters, not a photograph.