WORLDWALKGJ 3323 b
GJ 3323 b is a temperate Earth-size planet orbiting a red dwarf star 17.5 ly away. A year there lasts 5.4 days. It was found using the radial velocity method: it makes its star wobble. Its temperature could allow liquid water, which makes it a habitable-zone candidate, not a confirmed habitable world. Note: its size is estimated from its mass, only a minimum mass is known. It sits where a planet could be warm enough for liquid water, in the so-called habitable zone.
What it would be like in Worldwalk imagined
Nobody has seen the surface of GJ 3323 b. 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: 1.1 bar.
- A 70 kg explorer would feel like 93 kg.
- A jump that clears 50 cm on Earth would reach about 37 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.