TEXT 7
atha ca yavan nabho-mandalam saha dyav-aprthivyor mandalabhyam kartsnyena sa ha bhunjita tam kalam samvatsaram parivatsaram idavatsaram anuvatsaram vatsaram iti bhanor mandya-saighrya-sama-gatibhih samamananti.
SYNONYMS
athanow; caalso; yavatas long as; nabhah-mandalamouter space, between the upper and lower world; sahaalong with; dyauof the upper world; aprthivyohof the lower world; mandalabhyamthe spheres; kartsnyenaentirely; sahhe; haindeed; bhunjitamay pass through; tamthat; kalamtime; samvatsaramSamvatsara; parivatsaramParivatsara; idavatsaramIdavatsara; anuvatsaramAnuvatsara; vatsaramVatsara; itithus; bhanohof the sun; mandyaslow; saighryaspeedy; samaand equal; gatibhihby the speeds; samamanantithe experienced scholars describe.
TRANSLATION
The sun-god has three speedsslow, fast and moderate. The time he takes to travel entirely around the spheres of heaven, earth and space at these three speeds is referred to, by learned scholars, by the five names Samvatsara, Parivatsara, Idavatsara, Anuvatsara and Vatsara.
PURPORT
According to solar astronomical calculations, each year extends six days beyond the calendar year, and according to lunar calculations, each year is six days shorter. Therefore, because of the movements of the sun and moon, there is a difference of twelve days between the solar and lunar years. As the Samvatsara, Parivatsara, Idavatsara, Anuvatsara and Vatsara pass by, two extra months are added within each five years. This makes a sixth samvatsara, but because that samvatsara is extra, the solar system is calculated according to the above five names.

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