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Twenty-eight *dhanus* and thirteen *anguli*, plus half an *anguli* are the measurements of the *praabhrut* as determined by the *parikkhēvēṇaṃ*. When the Sun, moving through the *sabbhabdhantar* (entire space), reaches the northern *addhamandalasanthi* (half-circle), it is then the *uttamakatthapatta* (highest point) and the day is eighteen *muhutta* long, while the night is twelve *muhutta* long.
As the Sun moves out of the *sabbhabdhantar* (entire space) and into the first *ahoratta* (day and night) of the new year, it moves towards the northern *addhamandalasanthi* (half-circle) and then moves towards the southern *addhamandalasanthi* (half-circle) through the *abbhantarāṇantar* (inner space).
When the Sun, moving through the *abbhantarāṇantar* (inner space), reaches the southern *addhamandalasanthi* (half-circle), the day is eighteen *muhutta* long, minus two *muhutta*, while the night is twelve *muhutta* long, plus two *muhutta*.
As the Sun moves out of the *sabbhabdhantar* (entire space) and into the second *ahoratta* (day and night) of the new year, it moves towards the southern *addhamandalasanthi* (half-circle) and then moves towards the northern *addhamandalasanthi* (half-circle) through the *abbhantarāṇantar* (inner space).
When the Sun, moving through the *abbhantarāṇantar* (inner space), reaches the northern *addhamandalasanthi* (half-circle), the day is eighteen *muhutta* long, minus four *muhutta*, while the night is twelve *muhutta* long, plus four *muhutta*.
Thus, as the Sun moves out of the *sabbhabdhantar* (entire space) and into the subsequent *ahoratta* (day and night) of the new year, it moves towards the northern *addhamandalasanthi* (half-circle) and then moves towards the southern *addhamandalasanthi* (half-circle) through the *abbhantarāṇantar* (inner space), and as it moves through the *abbhantarāṇantar* (inner space), it reaches the southern *addhamandalasanthi* (half-circle) through the *sabbhabahīra* (entire outer space).
When the Sun, moving through the *sabbhabahīra* (entire outer space), reaches the southern *addhamandalasanthi* (half-circle), it is then the *uttamakatthapatta* (highest point) and the night is eighteen *muhutta* long, while the day is twelve *muhutta* long.
This is the first *chammāsa* (six months), this is the end of the first *chammāsa* (six months).
As the Sun moves into the second *chammāsa* (six months) of the new year, it moves towards the southern *addhamandalasanthi* (half-circle) and then moves towards the northern *addhamandalasanthi* (half-circle) through the *bāhirāṇantar* (outer space) in the first *ahoratta* (day and night).
When the Sun, moving through the *bāhirāṇantar* (outer space), reaches the northern *addhamandalasanthi* (half-circle), the night is eighteen *muhutta* long, plus two *muhutta*, while the day is twelve *muhutta* long, plus two *muhutta*.
As the Sun moves into the second *ahoratta* (day and night) of the new year, it moves towards the northern *addhamandalasanthi* (half-circle) and then moves towards the southern *addhamandalasanthi* (half-circle) through the *bāhira* (outer space) in the first *ahoratta* (day and night).
When the Sun, moving through the *bāhira* (outer space), reaches the southern *addhamandalasanthi* (half-circle), the night is eighteen *muhutta* long, minus four *muhutta*,