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LTT 1445 A b

LTT 1445 A b is a hot super-Earth orbiting a red dwarf star 22.4 ly away. Its star system has 3 stars. A year there lasts 5.4 days. It was found using the transit method: it dims its star as it passes in front.

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Gravity14.91 m/s²1.52× Earth measured

Size1.34× Earthradius measured

Mass2.73× Earthmeasured

Temperature≈ 158 °Cequilibrium temperature measured

Distance22.4 light-yearsfrom the Sun

Its star3,562 Ka red dwarf, in a system of 3 stars

One year5.4 daystime to orbit its star

Discovered2019transit

What it would be like in Worldwalk imagined

Nobody has seen the surface of LTT 1445 A b. The game builds it from the real numbers above: you land on bare, cratered rock with no air.

Air: None (bare rock). Surface pressure: almost none.
A 70 kg explorer would feel like 106 kg.
A jump that clears 50 cm on Earth would reach about 33 cm.
With almost no air, a hammer and a feather fall side by side, and sound cannot travel.

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 LTT 1445 A b

Other planets around LTT 1445 A

LTT 1445 A c1.16× Earth

Similar worlds nearby

GJ 393 b22.9 light-years HD 219134 c21.3 light-years HD 219134 f21.3 light-years GJ 4274 b23.6 light-years GJ 667 C e23.6 light-years GJ 667 C f23.6 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.