L 98-59 is a cool M-dwarf (about 0.29 solar masses, 3,415 K, 0.32 solar radii), 10.6 light-years from Earth. L 98-59 is a nearby compact system around a bright red dwarf, with a possibly volcanic inner planet and outer worlds near the habitable zone. The system hosts 5 confirmed planets on orbits ranging from 2.3 days to 23.1 days. With 5 confirmed worlds, L 98-59 is a densely packed system whose resonances, spacing, and formation history are active research topics. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly. L 98-59 b skims its star closer than Mercury orbits the Sun. At 0.8 Earth radii, L 98-59 b is a compact world comparable in size to rocky planets in our Solar System.

L 98-59 - System

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