WORLDWALKHR 858 d
HR 858 d is a scorching large super-Earth orbiting a bright white-yellow star 104.3 ly away. Its star system has 2 stars. A year there lasts 11.2 days. It was found using the transit method: it dims its star as it passes in front. Planets this size may be wrapped in thick gas; the game imagines it as a solid or water world you can walk on.
What it would be like in Worldwalk imagined
Nobody has seen the surface of HR 858 d. The game builds it from the real numbers above: you land on a molten surface of lava seas.
- Air: rock vapor · a guess. Surface pressure: 0.003 bar.
- A 70 kg explorer would feel like 124 kg.
- A jump that clears 50 cm on Earth would reach about 28 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 HR 858 dOther planets around HR 858
Similar 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.