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OGLE-2017-BLG-0173L b

OGLE-2017-BLG-0173L b is a frozen water-rich world orbiting a star 15,346 ly away. It was found using gravitational microlensing: its gravity briefly magnified a more distant star. Planets this size may be wrapped in thick gas; the game imagines it as a solid or water world you can walk on. It is one of the most distant planets known. Note: its size is estimated from its mass, its temperature is unknown, so the game assumes one.

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EarthOGLE-2017-BLG-0173L b
Gravity12.22 m/s²1.25× Earth estimated
Size1.62× Earthradius estimated
Mass3.27× Earthmeasured
Temperature?unknown: the game assumes about −213 °C
Distance15,346 light-yearsfrom the Sun
Its star?a star of unknown type
Discovered2018microlensing

What it would be like in Worldwalk imagined

Nobody has seen the surface of OGLE-2017-BLG-0173L 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 OGLE-2017-BLG-0173L b

Similar worlds nearby

KMT-2019-BLG-1367L b15,232 light-yearsKMT-2021-BLG-0171L b15,003 light-yearsKMT-2019-BLG-0253L b15,982 light-yearsKMT-2017-BLG-1194L b13,829 light-yearsKMT-2018-BLG-1988L b13,536 light-yearsOGLE-2005-BLG-169L b13,372 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.