The following is a list of the ninth planet in each of their respective star systems.

• 'aucdet IX
• Alpha Cygnus IX
• Arloff IX
• Armus IX
• Beltane IX
• Bolarus IX
• Delta Charnock IX
• Icor IX
• Lilliput IX
• Malkus IX
• New Brooklyn IX
• Orelious IX
• Pluto (Sol IX)
• Sirius IX
• Tarod IX
• Vega IX

Planet ordinals
Prime • I • II • III • IV • V • VI • VII • VIII • IX • X • XII • XIV • XX