WORLDWALKKepler-402 b
Kepler-402 b is a scorching Earth-size planet orbiting a bright white-yellow star 2,040 ly away. A year there lasts 4 days. It was found using the transit method: it dims its star as it passes in front. Note: its mass is estimated from its size.
What it would be like in Worldwalk imagined
Nobody has seen the surface of Kepler-402 b. The game builds it from the real numbers above: you land on glowing iron-rich lava fields.
- Air: rock vapor · a guess. Surface pressure: almost none.
- A 70 kg explorer would feel like 93 kg.
- A jump that clears 50 cm on Earth would reach about 38 cm.
- With almost no air, a hammer and a feather fall side by side, and sound cannot travel.
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.