C/2018 C2(Lemmon), 2018/06/01.5005, 8*120s, 20cm F4 Newtonian, ASI1600MC-Cool(Bin=1, Gain=300, Temp=0), 1/2 Cropping, mag=15.3(SI7) もうひとつのレモン彗星(C/2018 EF9)は確認できず。