Brihat Samhita
दृश्यो अमावास्यायां कपालकेतुः सधूम्ररश्मिशिखः । प्राङ्नभसो अर्धविचारी क्षुत्मरकावृष्टिरोगकरः ॥ ११-३१ ॥
Kapāla Ketu is visible on new-moon days; its tail is of the colour of smoke; its course lies through the eastern half of the visible hemisphere; when it appears mankind will suffer from hunger, death, drought and disease.
english translation
dRzyo amAvAsyAyAM kapAlaketuH sadhUmrarazmizikhaH । prAGnabhaso ardhavicArI kSutmarakAvRSTirogakaraH ॥ 11-31 ॥
hk transliteration by Sanscript