What it’s like to stand here
K2-331 b
weight
≈ 1.20 g
sky
warm white

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

Sub-Neptune

K2-331 b

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

K2-331
host star
1.79 R⊕
radius
3.86 M⊕
mass · estimated from radius
9.4 days
orbital period
636°C (1177°F)
avg temp
What it's like to stand here
≈ 1.20 g
your weight (mass estimated from size)
9.4 days
one year, in Earth time
sun size, needs orbit
warm white
midday sky tint
0.8×
how high you could jump vs Earth
rotation unknown
How long to get there · 690 ly away
Jet airliner
827 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
1.1 million years
dies en route1000-yr cryo: fails
Light speed
690 years
dies en route1000-yr cryo: survives
Warp 10
252 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthK2-331 b is 1.8× the width of Earth
Explore from here · roam the neighborhood
Host star
K2-331
5994 K host star · 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 11.3
ConstellationCancer
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 K2-331 b's confirmed parameters, not a photograph.