By His Divine Grace A. C. Bhaktivedanta Swami Prabhupāda
In each and every planet there is a predominating deity. It is understood from Bhagavad-gita that in the sun there is a predominating deity named Vivasvān. Similarly, there is a predominating deity of the moon and of the various planets. Actually the predominating deities in all the other planets are descendants from the predominating deities of the sun and moon.
On this planet earth there are two ksatriya dynasties, and one comes from the predominating deity of the sun and the other from the predominating deity of the moon. These dynasties are known as Surya-vamśa and Candra-vamśa respectively. When monarchy existed on this planet, the chief member was one of the members of the Surya dynasty, or Surya-vamśa, and the subordinate kings belonged to the Candra-vamśa. […]
In the modern age, people from earth have tried to go to the moon, but they have not been able to find anyone there, what to speak of meeting the moon’s predominating deity. The Vedic literature, however, repeatedly informs us that the moon is full of highly elevated inhabitants who are counted amongst the demigods. We are therefore always in doubt about what kind of moon adventure the modern scientists of this planet earth have undertaken.
[Bhaktivedanta Purport to the Srimad Bhagavatam 4.22.54]