Visual magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code 17P 20071202.531 34 Nyh.VSOLJ CETomicron 20071202.433 84 Nyh.VSOLJ ORIalpha 20071202.532 11 Nyh.VSOLJ Observer: Hiroshi Nishiyama (Ibaraki, Japan) Instruments: N, 10cmB