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Kepler-991 b

Kepler-991 b is a temperate water-rich world orbiting an orange star 1,271 ly away. A year there lasts 82.5 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. Note: its mass is estimated from its size.

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EarthKepler-991 b
Gravity10.63 m/s²1.08× Earth estimated
Size2.54× Earthradius measured
Mass6.99× Earthestimated
Temperature≈ −13 °Cequilibrium temperature measured
Distance1,271 light-yearsfrom the Sun
Its star4,392 Kan orange dwarf
One year82.5 daystime to orbit its star
Discovered2016transit

What it would be like in Worldwalk imagined

Nobody has seen the surface of Kepler-991 b. The game builds it from the real numbers above: you land on a deep ocean under a hydrogen sky.

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 Kepler-991 b

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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.