2_20200.txt c_ck17w020.txt C/2017 W2 Leonard C/2017 W2 CK17W020 C/2017 W2 (Leonard) 2017 11 01.7671 3.956259 0.711085 169.1304 312.8295 98.1977 2019 12 08 11.0 2000.0 4.0