[vsnet-alert 21944] NY Ser continues to be bright

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Thu Mar 8 08:18:01 JST 2018

NY Ser continues to be bright

   ASAS-SN data in March also support this.  Crimean
Astrophys. Obs. team and Kyoto U. team reported
short time-series observations, but large-amplitude
superhumps were not detected.  The object is
currently suspected to be in a "permanent superhumper"
state (but the case may be a borderline one,
since the orbital period is longer than ordinary
SU UMa-type dwarf novae).  More (longer) observations
are needed to test the presence of superhumps.

  YYYYMMDD(UT)   mag  observer
  20180103.6959 154c  (Yutaka Maeda)
  20180117.8959 <150c  (Yutaka Maeda)
  20180120.8653 150c  (Yutaka Maeda)
  20180124.8157 153c  (Yutaka Maeda)
  20180126.8001 154c  (Yutaka Maeda)
  20180201.7535 155c  (Yutaka Maeda)
  20180202.7673 157c  (Yutaka Maeda)
  20180213.7321 153c  (Yutaka Maeda)
  20180216.8037 156c  (Yutaka Maeda)
  20180217.710  152c  (Yutaka Maeda)
  20180222.6774 153c  (Yutaka Maeda)
  20180223.7022 156c  (Yutaka Maeda)
  20180226.6713 156c  (Yutaka Maeda)
  20180227.6959 154c  (Yutaka Maeda)
  20180301.6655 153c  (Yutaka Maeda)
  20180302.6975 150c  (Yutaka Maeda)
  20180303.7127 <151c  (Yutaka Maeda)
  20180306.7025 153c  (Yutaka Maeda)

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