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Kepler-1229 b

Kepler-1229 b is a cold super-Earth orbiting a red dwarf star 865.9 ly away. A year there lasts 86.8 days. It was found using the transit method: it dims its star as it passes in front. Its temperature could allow liquid water, which makes it a habitable-zone candidate, not a confirmed habitable world. Note: its mass is estimated from its size. It sits where a planet could be warm enough for liquid water, in the so-called habitable zone.

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EarthKepler-1229 b
Gravity12.71 m/s²1.3× Earth estimated
Size1.4× Earthradius measured
Mass2.54× Earthestimated
Temperature≈ −61 °Cequilibrium temperature measured
Distance866 light-yearsfrom the Sun
Its star3,784 Ka red dwarf
One year86.8 daystime to orbit its star
Discovered2016transit

What it would be like in Worldwalk imagined

Nobody has seen the surface of Kepler-1229 b. The game builds it from the real numbers above: you land on a frozen shell of ice.

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-1229 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.