What it’s like to stand here
K2-121 b
- weight
- 0.99 g
- sun
- 12.8× wider
- sky
- amber-orange
Illustration computed from this world’s measured and derived values, not a photograph.
Ice / gas giant
K2-121 b
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.
What it's like to stand here
0.99 g
surface gravity (no solid surface · measured mass)
5.2 days
one year, in Earth time
12.8× wider
how big its sun looks vs ours
amber-orange
midday sky tint
1.0×
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 · 553 ly away
Jet airliner
663 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
861,687 years
dies en route1000-yr cryo: fails
Light speed
552 years
dies en route1000-yr cryo: survives
Warp 10
202 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
K2-121
4526 K host star · 1 planet
Sibling worlds in this system
No other confirmed planets here yet. New ones auto-appear as telescopes report.
Nearby star systems
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
Can you see it tonight? · observe
MID-SIZE TELESCOPE NEEDED
Gear bridge
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
Illustration generated from K2-121 b's confirmed parameters, not a photograph.