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The proof of the four regions related to the **Samvadi** is 180 yojanas. Subtracting this from 50,000 yojanas (50,000 - 180) = 46,820 yojanas remain. Therefore, the sun's heat extends 46,820 yojanas (16,62,80,000 miles) north from the center of Mount Meru to the **Abhyantara Vithi**.
The diameter of the **Lavana Samudra** is 2,00,000 yojanas. One-sixth of this (2,00,000 / 6) = 33,333 yojanas. Adding the proof of the four regions related to the **Samvadi**, 180 yojanas (33,333 + 180) = 33,513 yojanas. Therefore, the sun's heat extends 33,513 yojanas (1,420,533,333 miles) south from the **Abhyantara Vithi** to one-sixth of the **Lavana Samudra**. The same should be applied to other **Vithis**.
The **Chitra Prithvi** is 800 yojanas below the sun's disc and the root of the **Chitra Prithvi** is 1000 yojanas. The sun's heat extends downwards (1000 + 800) = 1800 yojanas (72,00,000 miles).
The **Jyotirloka** is 100 yojanas above the sun's disc. Therefore, the sun's heat extends upwards 100 yojanas (4,00,000 miles).