What it’s like to stand here
K2-139 b
- weight
- 1.48 g
- sun
- 4.9× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
Gas giant
K2-139 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
1.48 g
surface gravity (no solid surface · measured mass)
28 days
one year, in Earth time
4.9× wider
how big its sun looks vs ours
warm white
midday sky tint
0.7×
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 · 502 ly away
Jet airliner
602 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
782,628 years
dies en route1000-yr cryo: fails
Light speed
502 years
dies en route1000-yr cryo: survives
Warp 10
183 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
K2-139
K0 V · 1 planet
Sibling worlds in this system
No other confirmed planets here yet. New ones auto-appear as telescopes report.
Nearby star systems
Similar worlds (size · gravity · star)
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 11.7
ConstellationSagittarius →
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 K2-139 b's confirmed parameters, not a photograph.