Brihat Samhita
क्षतजानलानुरूपास्त्रिचूलताराः कुजात्मजाः षष्टिः । नाम्ना च कौङ्कुमास्ते सौम्याशासंस्थिताः पापाः ॥ ११-२१ ॥
The comets which are of the colour of blood or fire and with three tails are named Kauṅkuma Ketus: they are the sons of Mars and are 60 in number; they appear in the north and when they appear mankind will feel miserable.
english translation
kSatajAnalAnurUpAstricUlatArAH kujAtmajAH SaSTiH । nAmnA ca kauGkumAste saumyAzAsaMsthitAH pApAH ॥ 11-21 ॥
hk transliteration by Sanscript