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[vsnet-campaign-nova 398] Nova Cyg 2001 prediscovery negative observation by Yamaomoto

Nova Cyg 2001 prediscovery negative observation by Yamaomoto

   The data suggest that the nova had not exprienced a much brighter maximum
just before the discovery.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
CYGnova2001    20010519.665  <119  Knk.VSOLJ
CYGnova2001    20010615.621  <119  Knk.VSOLJ
CYGnova2001    20010712.613  <116  Knk.VSOLJ

Observer's code:
  Knk: K.Kanatsu(Matsue,Shimane,Japan)
       instruments:f200mm+PO0(T-MAX400(120))

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