Complex sentence: Johann Palisa (December 6 1848-May 2 1925) was an Austrian astronomer, born in Troppau, Austria-Hungary (Opava, Czech Republic).
Split into simpler sentences: Johann Palisa (December 6 1848-May 2 1925) was an Austrian astronomer. Palisa was born in Troppau, Austria-Hungary (Opava, Czech Republic).