WORLDWALKKOI-1831 d
KOI-1831 d is a hot Earth-size planet orbiting an orange star 1,636 ly away. A year there lasts 34.2 days. It was found using the transit method: it dims its star as it passes in front.
▶ Land on KOI-1831 dFree · plays in your browser
Gravity17.13 m/s²1.75× Earth measured
Size1.13× Earthradius measured
Mass2.23× Earthmeasured
Temperature≈ 202 °Cequilibrium temperature measured
Distance1,636 light-yearsfrom the Sun
Its star5,233 Ka Sun-like star
One year34.2 daystime to orbit its star
Discovered2018transit
What it would be like in Worldwalk imagined
Nobody has seen the surface of KOI-1831 d. The game builds it from the real numbers above: you land on dry, dusty desert rock.
- Air: thin CO₂ (carbon dioxide), N₂ (nitrogen) · a guess. Surface pressure: 0.49 bar.
- A 70 kg explorer would feel like 122 kg.
- A jump that clears 50 cm on Earth would reach about 29 cm.
- Every step is hard work: your legs carry far more than your body weight.
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.
Play KOI-1831 dSimilar worlds nearby
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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.