CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ASASSN-17pn 20171124.760 14.37C Kis.VSOLJ ASASSN-17pn 20171125.760 14.53C Kis.VSOLJ Observer: Seiichiro Kiyota (Chiba, Japan) Instruments: 25cmSCT + Apogee Alta F47