tato 'dhastāt siddha-cāraṇa-vidyādharāṇāṁ sadanāni tāvan mātra eva.

tato 'dhastat siddha-carana-vidyadharanam sadanani tavan matra eva.
tatah-the planet Rahu; adhastat-below; siddha-carana-of the planets known as Siddhaloka and Caranaloka; vidyadharanam-and the planets of the Vidyadharas; sadanani-the residential places; tavat matra-only that much distance (eighty thousand miles); eva-indeed.