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HD 101581 b

HD 101581 b is a hot Earth-size planet orbiting an orange star 41.7 ly away. A year there lasts 4.5 days. It was found using the transit method: it dims its star as it passes in front. Note: its mass is estimated from its size.

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EarthHD 101581 b
Gravity8.83 m/s²0.9× Earth estimated
Size0.96× Earthradius measured
Mass0.83× Earthestimated
Temperature≈ 561 °Cequilibrium temperature measured
Distance41.7 light-yearsfrom the Sun
Its star4,675 Kan orange dwarf
One year4.5 daystime to orbit its star
Discovered2025transit

What it would be like in Worldwalk imagined

Nobody has seen the surface of HD 101581 b. The game builds it from the real numbers above: you land on bare, cratered rock with no air.

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 HD 101581 b

Other planets around HD 101581

HD 101581 c0.96× Earth

Similar worlds nearby

GJ 1132 b41.1 light-yearsGJ 1132 c41.1 light-yearsLHS 475 b40.7 light-yearsTRAPPIST-1 b40.5 light-yearsTRAPPIST-1 c40.5 light-yearsTRAPPIST-1 d40.5 light-years

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.