Surya Siddhanta
प्रोच्यन्ते लिप्तिका भानाम् स्वभोगो +अथ दशाहतः। भवन्त्य् अतीतधिष्ण्यानाम् भोगलिप्तायुता ध्रुवाः॥
Now are set forth the positions of the asterisms (bha), in minutes. If the share of each one, then, be multiplied by ten, and increased by the minutes in the portions (bhoga) of the past asterisms (djkishnya) , the result will be the polar longitudes (dhruva).
english translation
procyante liptikA bhAnAm svabhogo +atha dazAhataH। bhavanty atItadhiSNyAnAm bhogaliptAyutA dhruvAH॥
hk transliteration by Sanscript