CCD Observations Object YYYYMMDD(UT) Mag Obs Chart Remarks SERX 20180224.438 17.16V MRV AAVSO AAVSONET SRO-50; Err 0.10 Instrument: 50.0 cm f/4 Newtonian (SRO-50) Observer: Robert J. Modic (MRV), AAVSO