What it’s like to stand here
GJ 317 c
weight
≥ 2.46 g
sun
0.08× as wide
sky
deep orange

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

Gas giant

GJ 317 c

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

GJ 317
host star
13.60 R⊕
radius
454 M⊕
mass · minimum (m·sin i)
17.8 years
orbital period
-225°C (-374°F)
avg temp
What it's like to stand here
≥ 2.46 g
surface gravity (no solid surface · minimum mass only)
17.8 years
one year, in Earth time
0.08× as wide
how big its sun looks vs ours
deep orange
midday sky tint
0.4×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 49.6 ly away
Jet airliner
59.4 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
77,302 years
dies en route1000-yr cryo: fails
Light speed
50 years
arrives elderly
Warp 10
18 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthGJ 317 c is 14× the width of Earth
Explore from here · roam the neighborhood
Host star
GJ 317
M3.5 V · 2 planets
Explore →
Sibling worlds in this system

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 12.4
ConstellationPyxis
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.

Illustration generated from GJ 317 c's confirmed parameters, not a photograph.