Simplify the following text for a Grade 9 native English-speaking person.
Original: Comet 81P\/Wild , also known as Wild 2 ( Vilt ) , is a comet named after Swiss astronomer Paul Wild , who discovered it in 1978 using a 40-cm Schmidt telescope at Zimmerwald .
Simplified: Comet 81P\/Wild , also known as Wild 2 , is a comet named after Swiss astronomer Paul Wild ( pronounced Vilt ) , who discovered it in 1978 .