Visual magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code SCOdelta 20010202.847 20 Ymo.VSOLJ SCOdelta 20010216.816 20 Ymo.VSOLJ SCOdelta 20010222.812 20 Ymo.VSOLJ SCOdelta 20010224.809 20 Ymo.VSOLJ SCOdelta 20010225.803 20 Ymo.VSOLJ SCOdelta 20010302.792 20 Ymo.VSOLJ Observer's code: Ymo: M. Yamamoto (Aichi, Japan) Instruments: N comparison star: alpha Oph (2.08)