2_20701.txt c_ck21t040.txt C/2021 T4 Lemmon C/2021 T4 CK21T040 C/2021 T4 (Lemmon) 2023 07 31.5071 1.483274 1.000139 329.7925 257.8646 160.7746 2023 01 28 7.5 2000.0 4.0