Exoplanets – 4-Planet System Scenarios
Barnard's star - System
DMPP-1 - System
GJ 3293 - System
GJ 676 A - System
GJ 876 - System
GJ 887 - System
HD 141399 - System
HD 160691 - System
HD 164922 - System
HD 20781 - System
HD 20794 - System
HD 215152 - System
HD 3167 - System
HR 8799 - System
K2-133 - System
K2-187 - System