Brihat Samhita
कुमुद इति कुमुदकान्तिर्वारुण्यां प्राक्शिखो निशां एकाम् । दृष्टः सुभिक्षं अतुलं दश किल वर्षाणि स करोति ॥ ११-४३ ॥
Kumuda Ketu is a comet of the colour of the white water lily. It appears in the west with its tail pointing to the east and is visible only for a night. When it appears there will be unprecedented happiness in the land for a period of ten years.
english translation
kumuda iti kumudakAntirvAruNyAM prAkzikho nizAM ekAm । dRSTaH subhikSaM atulaM daza kila varSANi sa karoti ॥ 11-43 ॥
hk transliteration by Sanscript