NSV 4838 superoutburst (Time-resolved photometry not particularly requested) YYYYMMDD(UT) mag observer 20230107.867 <168C (Mitsutaka Hiraga) 20230107.9056 <148C (Masayuki Moriyama) 20230109.7233 <142c (Yutaka Maeda) 20230110.7021 146c (Yutaka Maeda) 20230110.7021 146c (Yutaka Maeda) 20230114.883 150C (Jeremy Shears) 20230115.010 15.02C (Gary Poyner)