TEXT 43
anda-madhya-gatah suryo
dyav-abhumyor yad antaram
suryanda-golayor madhye
kotyah syuh panca-vimsatih
SYNONYMS
anda-madhya-gatah—situated in the center of the universe; suryah—the sun globe; dyav-abhumyoh—the two planetary systems Bhurloka and Bhuvarloka; yat—which; antaram—in between; surya—of the sun; anda-golayoh—and the globe of the universe; madhye—in the middle; kotyah—groups of ten million; syuh—are; panca-vimsatih—twenty-five.
TRANSLATION
The sun is situated [vertically] in the middle of the universe, in the area between Bhurloka and Bhuvarloka, which is called antariksa, outer space. The distance between the sun and the circumference of the universe is twenty-five koti yojanas [two billion miles].
PURPORT
The word koti means ten million, and a yojana is eight miles. The diameter of the universe is fifty koti yojanas (four billion miles). Therefore, since the sun is in the middle of the universe, the distance between the sun and the edge of the universe is calculated to be twenty-five koti yojanas (two billion miles).

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