Surya Siddhanta
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क्रान्तिविक्षेपभागैश् च दलितैर् दक्षिणोत्तरैः। स्वैः स्वैर् अपक्रमैस् तिस्रो मेषादीनाम् अपक्रमात्॥
- And by means of the degrees of declination and latitude (vikshepa) marked off upon the latter—at their own respective distances in declination, according to the declination of Aries etc., three . -
english translation
कक्षाः प्रकल्पयेत् ताश् च कर्क्यादीनाम् विपर्ययात् । तद्वत् तिस्रस् तुलादीनाम् मृगादीनाम् विलोमतः॥
- Hoops are to be prepared and fastened : these answer also inversely for Cancer, etc. In the same manner, three for Libra etc., answering also inversely for Capricorn, etc. -
english translation
याम्यगोलाश्रिताः कार्याः कक्षाधाराद् द्वयोर् अपि। याम्योदग्गोलसम्स्थानाम् भानाम् अभिजितस् तथा॥
And situated in the southern hemisphere, are to be made and fastened to the two hoop-supporters. Those likewise of the asterisms (bha) situated in the southern and northern hemispheres, of Abhijit -
english translation
सप्तर्षीणाम् अगस्त्यस्य ब्रह्मादीनाम् च कल्पयेत् । मध्ये वैषुवती कक्षा सर्वेषाम् एव सम्स्थिता॥
Of the Seven Sages (saptarshayas) , of Agastya, of Brahma etc., are to be fixed, just in the midst of all, the equinoctial (vdishuvati) hoop is fixed.
english translation
तदाधारयुतेर् ऊर्ध्वम् अयने विषुवद्वयम् । विषुवत्स्थानतो भागैः स्फुटैर् भगणसञ्चरात्॥
Above the points of intersection of that and the supporting hoops are the two solstices (ayana) and the two equinoxes (vishuvat). From the place of the equinox, with the exact number of degrees, as proportioned to the whole circle -
english translation