Planetary system around the star LHS 1903
Planetary system around the star LHS 1903
This artist's impression shows the planetary system surrounding LHS 1903, a small red M-dwarf star. The system's architecture poses a challenge to planet formation theory, as the sequence of rocky planet – gas planet – gas planet – rocky planet within a single planetary system is unusual and rarely observed. CHEOPS was able to examine this fourth planet in detail. This outer rocky planet, which may have formed later than the others, orbits its star beyond the gas giants.
Credit:
ESA / ATG Europe