Heavenly planets (CC and Other Books)
Sri Caitanya-caritamrta
CC Adi-lila
CC Adi 5.221, Purport:
Lord Brahmā lives in the highest planetary system, known as Brahmaloka or Satyaloka. In every planet there is a predominating deity. As the predominating deity in Satyaloka is Lord Brahmā, so in the heavenly planets Indra is the predominating deity, and on the sun, the sun-god, Vivasvān, is the predominating deity. The inhabitants and predominating deities of every planet are all recommended to worship Govinda either by meditation or by chanting.