Astronomy - Lunar Eclipse

छादायती शशि सूर्यं शशिनं महती च भुछाया 

chadayati sashi suryam sasinam mahati cha bhuchhaya


"The moon covers the sun and the great shadow of the earth covers the moon"


Source: Aryabhattiyam, Golapadah, chapter 4, slokah 37 (b.499 A.D)