Yoga Sutras of Patanjali 3.28

चन्द्रे ताराव्यूहज्ञानम् ॥

chandre tara-vyuha-jnanam

By samyama on the moon, knowledge of the arrangement of the stars arises.

चन्द्र पर (संयम से) तारा-व्यूह का ज्ञान।