siddhadarśanaṃ jyotiḥśāstrādyupanibaddham / taddhi siddhānāṃ darśanaṃ siddhaṃ vā darśanam iti kṛtvā siddhadarśanam ucyate /
Astrological knowledge is based on astronomy and other [sciences]. Indeed, it is called siddhadarśana because it is either the vision of accomplished ones or established knowledge.