DSLR magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code LIBdelta 20120211.84304 4.885cG Nga.VSOLJ Observer: K. Nagai (Kanagawa, Japan) Instruments: f=28mm(F4.0) lens + Canon EOS Kiss digital (measured from G-channel images; magnitude references: Tycho2 V mag)