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[vsnet-obs 20256] New Takamizawa variable (TmzV349)

New Takamizawa variable (TmzV349)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV349).

TmzV349
= GSC5992.3745 073941.98 -222217.7 (2000.0) 12.66 0 N
= GSC5992.3745 073942.04 -222217.5 (2000.0) 13.20 0
= USNO0675.04633939 073941.982 -222217.89 (2000.0) 10.7 14.4
= IRAS07375-2215 073732.6 -221517 (1950.0)
    F12=2.51  F25=1.44  F60=0.40L F100=1.90L
    VAR=24 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 073941.3 -222214 (2000.0) IRAS07375-2215 2.512 1.490 0.400L 1.840L 24%
= 073941.3 -222214 (2000.0) SSC07375-2215 2.512 1.490 0.400L 1.840L
= 073936.0 -222100 (2000.0) M6(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.5-12.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV349        940314.501  123p  Tmz.VSOLJ
TmzV349        941111.731  122p  Tmz.VSOLJ
TmzV349        950203.546  124p  Tmz.VSOLJ
TmzV349        950927.799  116p  Tmz.VSOLJ
TmzV349        951118.744  117p  Tmz.VSOLJ
TmzV349        951222.685  115p  Tmz.VSOLJ
TmzV349        961021.768  118p  Tmz.VSOLJ
TmzV349        961206.707  124p  Tmz.VSOLJ
TmzV349        970103.622  120p  Tmz.VSOLJ
TmzV349        970227.485  125p  Tmz.VSOLJ
TmzV349        971013.798  118p  Tmz.VSOLJ
TmzV349        971103.802  117p  Tmz.VSOLJ
TmzV349        971204.695  115p  Tmz.VSOLJ
TmzV349        971224.633  120p  Tmz.VSOLJ
TmzV349        980121.549  123p  Tmz.VSOLJ
TmzV349        980217.497  119p  Tmz.VSOLJ
TmzV349        980325.453  125p  Tmz.VSOLJ
TmzV349        981115.737  120p  Tmz.VSOLJ
TmzV349        981212.628  117p  Tmz.VSOLJ
TmzV349        990208.557  122p  Tmz.VSOLJ
TmzV349        990404.438  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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