WORLDWALKKepler-138 c
Kepler-138 c is a hot super-Earth orbiting a red dwarf star 218.1 ly away. A year there lasts 13.8 days. It was found using the transit method: it dims its star as it passes in front.
▶ Land on Kepler-138 cFree · plays in your browser
Gravity9.9 m/s²1.01× Earth measured
Size1.51× Earthradius measured
Mass2.3× Earthmeasured
Temperature≈ 137 °Cequilibrium temperature measured
Distance218 light-yearsfrom the Sun
Its star3,841 Ka red dwarf
One year13.8 daystime to orbit its star
Discovered2014transit
What it would be like in Worldwalk imagined
Nobody has seen the surface of Kepler-138 c. The game builds it from the real numbers above: you land on rocky land with shallow seas.
- Air: N₂ (nitrogen), CO₂ (carbon dioxide), H₂O (water vapor) · a guess. Surface pressure: 1.69 bar.
- A 70 kg explorer would feel like 71 kg.
- A jump that clears 50 cm on Earth would reach about 50 cm.
Pack the right suit. Choose 3 of 6 modules (cooling, heating, pressure hull, extra oxygen, radiation shield, jetpack), complete 3 surveys and get back to the lander before your oxygen runs out.
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Sizes, masses, temperatures and orbits come from the NASA Exoplanet Archive (Planetary Systems Composite table). Values marked estimated are calculated from the other measurements; the surface and air are imagined for the game.