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[vsnet-newvar 1337] New Takamizawa variable (TmzV938)

New Takamizawa variable (TmzV938)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV938).

TmzV938
= GSC4029.406 010257.31 +672631.8 (2000.0) 12.68 1
= USNO1500.01094718 010257.314 +672631.93 (2000.0) 12.1 16.5
= IRAS00596+6710 005939.8 +671015 (1950.0)
     F12=0.83  F25=0.40  F60=0.40L F100=2.51L
     VAR=30 LRS=-1
  possibly II: variable star with 'young' O-rich circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
  or VIa: non-variable star with relatively cold dust at large
       distance, may be carbon-rich
= 010255.6 +672621 (2000.0) IRAS00596+6710 0.861 0.391 0.400L 2.549L 30%
= 010255.6 +672621 (2000.0) SSC00596+6710 0.861 0.391 0.400L 2.549L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.0-13.6p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV938        19950120.474  135p  Tmz.VSOLJ
TmzV938        19970517.718  134p  Tmz.VSOLJ
TmzV938        19970703.727  131p  Tmz.VSOLJ
TmzV938        19980116.397  136p  Tmz.VSOLJ
TmzV938        19980823.617  132p  Tmz.VSOLJ
TmzV938        19981011.414  131p  Tmz.VSOLJ
TmzV938        19990105.447  136p  Tmz.VSOLJ
TmzV938        20000529.751  132p  Tmz.VSOLJ
TmzV938        20001216.393  130p  Tmz.VSOLJ
TmzV938        20010520.749  132p  Tmz.VSOLJ
TmzV938        20011116.528  131p  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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