WORLDWALKGJ 393 b
GJ 393 b is a hot Earth-size planet orbiting a red dwarf star 22.9 ly away. A year there lasts 7 days. It was found using the radial velocity method: it makes its star wobble. Note: its size is estimated from its mass, only a minimum mass is known.
What it would be like in Worldwalk imagined
Nobody has seen the surface of GJ 393 b. 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: 0.47 bar.
- A 70 kg explorer would feel like 87 kg.
- A jump that clears 50 cm on Earth would reach about 40 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.
Play GJ 393 bSimilar worlds nearby
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.