Srimad Bhagavatam Canto 05, Chapter 21, Text 18

SB 5.21.18

tathanye ca rsayo gandharvapsaraso naga gramanyo yatudhana deva ity ekaikaso ganah sapta caturdasa masi masi bhagavantam suryam atmanam nana-namanam prthan-nana-namanah prthak-karmabhir dvandvasa upasate.
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Similarly, fourteen other saints, Gandharvas, Apsaras, Nagas, Yaksas, Raksasas and demigods, who are divided into groups of two, assume different names every month and continuously perform different ritualistic ceremonies to worship the Supreme Lord as the most powerful demigod Suryadeva, who holds many names.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
In the Visnu Purana it is said:
 
stuvanti munayah suryam
 gandharvair giyate purah
nrtyanto ’psaraso yanti
 suryasyanu nisacarah
 
vahanti pannaga yaksaih
 kriyate ’bhisusangrahah
valikhilyas tathaivainam
 parivarya samasate
 
so ’yam sapta-ganah surya-
 mandale muni-sattama
himosna vari-vrstinam
 hetutve samayam gatah
 
Worshiping the most powerful demigod Surya, the Gandharvas sing in front of him, the Apsaras dance before the chariot, the Nisacaras follow the chariot, the Pannagas decorate the chariot, the Yaksas guard the chariot, and the saints called the Valikhilyas surround the sun-god and offer prayers. The seven groups of fourteen associates arrange the proper times for regular snow, heat and rain throughout the universe.
Srimad Bhagavatam Canto 05, Chapter 21, Text 17
Srimad Bhagavatam Canto 05, Chapter 21, Text 19