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[vsnet-alert 2970] Z UMi start of fading



Z UMi start of fading

   Eddy Muyllaert (Belgium) reports that the R CrB-type variable Z UMi
is fading.  The latest major fading of Z UMi started in 1997 May, and
returned close to maximum around 1998 July, after several episodes of
fluctuations.  Follow-up observations are encouraged.

  YYMMDD(UT)   mag  observer
  990409.169   110  (G. Hanson)
  990409.955   111  (G. Poyner)
  990409.967   110  (H. McGee)
  990410.158   110  (G. Hanson)
  990410.972   110  (G. Poyner)
  990411.055   110  (H. McGee)
  990411.080   111  (R. J. Bouma)
  990411.144   110  (G. Hanson)
  990411.867   111  (E. Muyllaert)
  990414.146   110  (G. Hanson)
  990414.842   111  (G. Comello)
  990414.874   110  (G. Poyner)
  990414.894   110  (R. J. Bouma)
  990415.876   111  (E. Muyllaert)
  990417.101   110  (H. McGee)
  990418.869   111  (E. Muyllaert)
  990418.892   111  (R. J. Bouma)
  990419.903   111  (G. Comello)
  990420.917   111  (T. Lange)
  990423.875   111  (E. Muyllaert)
  990423.890   111  (G. Comello)
  990424.876   111  (G. Poyner)
  990427.890   111  (G. Poyner)
  990428.947   111  (G. Poyner)
  990429.892   113  (R. J. Bouma)
  990430.692   112  (H. Itoh)
  990501.271   113  (R. J. Modic)
  990503.860   113  (G. Comello)
  990503.875   113  (R. J. Bouma)
  990506.897   116  (E. Muyllaert)
  990507.041   110  (H. McGee)
  990508.901   116  (E. Muyllaert)
  990509.910   116  (R. J. Bouma)
  990510.338   115  (R. J. Modic)
  990510.865   115  (G. Comello)
  990510.892   116  (R. J. Bouma)
  990510.922   117  (E. Muyllaert)
  990510.983   114  (D. Gill)
  990511.990   113  (H. McGee)
  990512.056   114  (G. Poyner)
  990512.933   118  (E. Muyllaert)

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