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Hayanaratna · by Balabhadra
Chapter 8 · Month Chart and Monthly Results
मासप्रवेशादिविचाराध्यायः
रेखास्वदेशांतरयोजनानि निजांघ्रि९हीनानि विलिप्तिकास्स्युः ॥देशांतरस्याथ रवावृणं प्राक् पश्चाद्धनम्मध्यरविस्स्वदेशे ॥
The yojanas (a measure of distance) of the distance between the line and one's own place, less their own quarter (9), become seconds. Then the deshantara (correction for distance east or west) for the Sun is minus to the east and plus to the west. This gives the mean Sun at one's own place.
Simple meaning: Correction for east-west distance: yojanas from the line to your place, less a quarter, become seconds. Subtract for east, add for west.
शाकांकः | १४८९ | १५०९ | १५२९ | १५४९ | १५६९ | १५८९ | १६०९ | १६२९ | १६४९ | १६६९ | १६८९ | १७०९ | १७२९ | १७४९ | १७६९ | १७८९ | १८०९ | १८२९ | १८४९ | १८६९
Year lord table: weekday, ghatikas, palas and vipalas for Shaka years in steps of 20 and for the left-over years 1 to 20.
एकान्ते मध्यमार्कश्च त्रैक्यार्द्धं स्थापयेद्बुधः ॥
Keep the mean Sun and half of the traikya aside.
द्यौरमेघाः१७स्वयमाः२०सूर्य्यमन्दोच्चं राशिपूर्वकम् ॥
The Sun's manda high point is 2 signs 17 degrees 20 minutes. The high point less the Sun gives the manda anomaly.