V337 Cyg outburst The SU UMa-type dwarf nova V337 Cyg is in outburst (superoutburst?). YYYYMMDD(UT) mag observer 20120611.446 <168CV (Kevin B. Paxson) 20120619.419 <168CV (Kevin B. Paxson) 20120627.402 15.181CV (Kevin B. Paxson)