302
Śrīmad-Bhāgavatam
[Canto 5, Ch. 20]
tat-dvīpa-madhye —within that island;  mānasottara —Mānasottara;  nāma —named;  ekaḥ —one;  eva —indeed;  arvācīna —on this side;  parācīna —and beyond, or outside;  varṣayoḥ —of tracts of land;  maryādā —indicating the boundary;  acalaḥ —a great mountain;  ayuta —ten thousand;  yojana —eight miles;  ucchrāya-āyāmaḥ —whose height and width;  yatra —where;  tu —but;  catasṛṣu —in the four;  dikṣu —directions;  catvāri —four;  purāṇi —cities;  loka-pālānām —of the directors of planetary systems;  indra-ādīnām —headed by Indra;  yat —of which;  upariṣṭāt —on the top;  sūrya-rathasya —of the chariot of the sun-god;  merum —Meru Mountain;  paribhramataḥ —while circumambulating;  saṁvatsara-ātmakam —consisting of one  saṁvatsara ;  cakram —wheel or orbit;  devānām —of the demigods;  ahaḥ-rātrābhyām —by the day and night;  paribhramati —moves around.
TRANSLATION
In the middle of that island is a great mountain named Mānasottara, which forms the boundary between the inner side and the outer side of the island. Its breadth and height are 10,000 yojanas [80,000 miles]. On that mountain, in the four directions, are the residential quarters of demigods such as Indra. In the chariot of the sun-god, the sun travels on the top of the mountain in an orbit called the  Saṁvatsara , encircling Mount Meru. The sun's path on the northern side is called  Uttarāyaṇa , and its path on the southern side is called  Dakṣīṇāyaṇa . One side represents a day for the demigods, and the other represents their night.
PURPORT
The movement of the sun is confirmed in the  Brahma-saṁhitā  (5.52):  yasyājñāya bhramati saṁbhṛta-kāla-cakraḥ . The sun orbits around Mount Sumeru, for six months on the northern side and for six months on the southern. This adds up to the duration of a day and night of the demigods in the upper planetary systems.
TEXT 31
तद्दीपस्याप्यधिपतिः प्रैयत्रतो वीतिहोत्रो नामैतस्यात्मजौ रमणकधातकि- नामानौ वर्षपती नियुज्य स स्वयं पूर्वजवद्भगवत्कर्मशील एवास्ते ॥३१॥