2_20701.txt c_ck21x010.txt C/2021 X1 Maury-Attard C/2021 X1 CK21X010 C/2021 X1 (Maury-Attard) 2023 05 27.4833 3.233615 1.000063 334.6291 10.5850 140.1213 2023 01 28 7.0 2000.0 4.0