What it’s like to stand here
K2-105 b
weight
1.33 g
sun
11.4× wider
sky
warm white

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

Sub-Neptune

K2-105 b

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

K2-105
host star
3.40 R⊕
radius
15.40 M⊕
mass · measured
8.3 days
orbital period
532°C (989°F)
avg temp
What it's like to stand here
1.33 g
your weight (measured mass)
8.3 days
one year, in Earth time
11.4× wider
how big its sun looks vs ours
warm white
midday sky tint
0.8×
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 · 646 ly away
Jet airliner
774 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
1.0 million years
dies en route1000-yr cryo: fails
Light speed
646 years
dies en route1000-yr cryo: survives
Warp 10
236 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthK2-105 b is 3.4× the width of Earth
Explore from here · roam the neighborhood
Host star
K2-105
K1 · 1 planet
Explore →
Sibling worlds in this system

No other confirmed planets here yet. New ones auto-appear as telescopes report.

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 11.8
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 K2-105 b's confirmed parameters, not a photograph.