The width and length of the seven lower planetary systems are calculated to be exactly the same as those of earth

Expressions researched:
"The width and length of the seven lower planetary systems are calculated to be exactly the same as those of earth"

SB Canto 5

The width and length of the seven lower planetary systems are calculated to be exactly the same as those of earth.

SB 5.24.7, Translation:

My dear King, beneath this earth are seven other planets, known as Atala, Vitala, Sutala, Talātala, Mahātala, Rasātala and Pātāla. I have already explained the situation of the planetary systems of earth. The width and length of the seven lower planetary systems are calculated to be exactly the same as those of earth.