SDSS J012940.05+384210.4 rebrightening (from precursor?) (It is an AM CVn-type object) YYYYMMDD(UT) mag observer 20141219.973 <181C (Eddy Muyllaert) 20141227.974 <181C (Eddy Muyllaert) 20141229.816 149C (Jeremy Shears) (around 16.6 on Dec. 30, Itoh) 20150103.810 144C (Jeremy Shears)