Bestla or Saturn XXXIX -LRB- provisional designation S\/2004 S 18 -RRB- is a retrograde irregular satellite of Saturn .
Bestla or Saturn XXXIX -LRB- provisional designation S\/2004 S 18 -RRB- is a moon of Saturn .
Bestla or Saturn XXXIX -LRB- provisional designation S\/2004 S 18 -RRB- is a moon of Saturn .
Simplifica la oración: Bestla or Saturn XXXIX -LRB- provisional designation S\/2004 S 18 -RRB- is a retrograde irregular satellite of Saturn . Producción: