Kerbal Star Systems Wiki

The CDS, or Celestial Designation System, was created by the International Kerbin AeroSpace Organization (IKASO) as an alternative way of labeling celestial bodies. The IKASO is the only officially recognized authority in astronomy for assigning designations to celestial bodies. The CDS designations are the official scientific designations given in response to the need for unambiguous names for astronomical objects.

Designation Method

(Star name/designation) (planet designation) (moon designation)

  • The stellar designation is usually just the accepted common name of the star. However, if the star is located in a multi-star system, then each start is assigned a capitalized letter (A, B, C, etc.) after the name of the system in order of decreasing luminosity.
    • Example: Kirb--> Nova Kirbani A; Kelin--> Nova Kirbani B; Kernim--> Nova Kirbani C; Kerbol--> Kerbol
  • The planet designation is just the name of the star (or star designation) followed by a numeral (I, II, III, etc.) that corresponds to the order of planets from the star in the system, starting from the closest and moving outwards.
    • For example, Blalo is the third planet from Kelin in the Kelin System, so it would be called "Kelin III"
      • Using Kelin's stellar designation, Blalo would be " Nova Kirbani B III "
  • The moon designation consists of the common name of the parent planet followed by the numeral (I,II,III,etc.) corresponding to the order of the moon in the system.
    • For example, Alar is designated as "Blalo III".


  • Mirn (planet) --> Kirb IV --> Nova Kirbani A IV
  • Ora (planet) --> Kelnis IV
  • Kerilim (star) --> Kerolon B
  • Kerbos (star) --> Kelaris C
  • Kirilim (star) --> Kelaris B
  • Kerbin (planet) --> Kerbol III
  • Taythe (moon) --> Mirn III
  • Mun (moon) --> Kerbin I


  • Currently, there is no available methods for designating dwarf planets or comets. This may or may not be implemented in the future.
  • There will be a designation method for Lagrange planets in the near future when they are implemented.