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[vsnet-newvar 779] New Takamizawa variable (TmzV790)

New Takamizawa variable (TmzV790)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV790).

TmzV790
= GSC3969.1289 220458.19 +540740.1 (2000.0) 13.55 1
= USNO1425.12903110 220458.180 +540739.61 (2000.0) 12.7 16.5
= IRAS22031+5353 220309.0 +535302 (1950.0)
     F12=0.91  F25=0.48  F60=0.52  F100=10.96L
     VAR=56 LRS=-1
= 220458.1 +540738 (2000.0) IRAS22031+5353 0.898 0.494 0.538 10.900L 56%
= 220458.1 +540738 (2000.0) SSC22031+5353 0.898 0.494 0.538 10.900L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.8-14.5p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV790        19940903.567  141p  Tmz.VSOLJ
TmzV790        19941127.492  142p  Tmz.VSOLJ
TmzV790        19951212.460  138p  Tmz.VSOLJ
TmzV790        19970824.567  143p  Tmz.VSOLJ
TmzV790        19970827.549  145p  Tmz.VSOLJ
TmzV790        19971218.393  <128p  Tmz.VSOLJ
TmzV790        19980823.571  142p  Tmz.VSOLJ
TmzV790        19980916.541  143p  Tmz.VSOLJ
TmzV790        19990709.583  145p  Tmz.VSOLJ
TmzV790        19990807.602  143p  Tmz.VSOLJ
TmzV790        19991226.386  145p  Tmz.VSOLJ
TmzV790        20000505.684  140p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

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