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[vsnet-newvar 649] New Takamizawa variable (TmzV761)

New Takamizawa variable (TmzV761)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV761).

TmzV761
= GSC6471.883 043944.60 -294558.7 (2000.0) 12.42 0
= USNO0600.00817453 043944.595 -294559.18 (2000.0) 10.6 12.1
= 2MASS 043944.616 -294558.68 (2000.0)  0.000  0.000  0.000
= IRAS04377-2951 043746.6 -295147 (1950.0)
     F12=2.29  F25=0.83  F60=0.44L F100=3.98L
     VAR= 7 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
= 043944.1 -294558 (2000.0) FSC04377-2951 2.319 0.792 0.212L 0.674L
= 043944.3 -294559 (2000.0) IRAS04377-2951 2.332 0.808 0.448L 3.932L 7%
= 043944.3 -294559 (2000.0) SSC04377-2951 2.332 0.808 0.448L 3.932L
= 043944.7 -294557 (2000.0) 1143 1.26 TYC2-6471.883.1 (11.56 0.10) (13.04 0.25)
= 043943.9 -294651 (2000.0) CD-30.1936 10.0

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.9-12.7p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV761        19941104.746  127p  Tmz.VSOLJ
TmzV761        19950131.465  124p  Tmz.VSOLJ
TmzV761        19951127.580  119p  Tmz.VSOLJ
TmzV761        19961020.704  123p  Tmz.VSOLJ
TmzV761        19971101.704  121p  Tmz.VSOLJ
TmzV761        19990117.492  119p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <GHA07243@nifty.ne.jp>

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