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[vsnet-campaign-nova 918] Possible Nova Sgr 2002: prediscovery negative observation by A. Takao

Possible Nova Sgr 2002: prediscovery negative observation by A. Takao

   Akira Takao (Kita-kyushu, Japan) reports the following pre-discovery
unfiltered CCD observations (negative observations).  Additional photometry
on Apr. 17 is also reported.

object         YYYYMMDD(UT)   mag  code
SGRnova2002    20010517.767  <129C  Toa.VSOLJ
SGRnova2002    20020219.855  <118C  Toa.VSOLJ
SGRnova2002    20020318.828  <118C  Toa.VSOLJ
SGRnova2002    20020404.769  <118C  Toa.VSOLJ
SGRnova2002    20020417.828   96C  Toa.VSOLJ

mag:compared to GSC7378:2298,7378:1960,7391:2342

Observer's code:
  Toa: Akira Takao (Kita-kyushu, Japan)
       Instruments:f120 - 200mm F4 Telephotolens, ST-8, unfiltered

Relayed from Akira Takao <drtakao@bronze.ocn.ne.jp>

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