Surya Siddhanta
नित्यशो +अर्कस्य विक्षेपाः परिलेखे यथादिशम् । विपरीताः शशाङ्कस्य तद्वशाद् अथ मध्यमम्॥
Always, in a solar eclipse, the latitudes are to be drawn in the figure (parilekha) in their proper direction; in a lunar eclipse, in the opposite direction. In accordance with this, then, for the middle of the eclipse,
english translation
nityazo +arkasya vikSepAH parilekhe yathAdizam । viparItAH zazAGkasya tadvazAd atha madhyamam॥
hk transliteration by Sanscript