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[vsnet-obs 19081] New Takamizawa variable (TmzV203)

New Takamizawa variable (TmzV203)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV203).

TmzV203
= GSC2890.966 041445.80 +434626.9 (2000.0) 11.13 1
= USNO1275.03109071 041445.806 +434626.63 (2000.0) 11.2 15.1
= IRAS04112+4338 041113.6 +433852 (1950.0)
    F12=0.83  F25=0.36L F60=0.40L F100=1.74L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or 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
= 041444.3 +434623 (2000.0) IRAS04112+4338 0.826 0.352L 0.400L 1.676L -1%
= 041444.3 +434623 (2000.0) SSC04112+4338 0.826 0.352L 0.400L 1.676L
= 041445.8 +434628 (2000.0) CS636 - 11.8: 9.1 -
= 041448.0 +434559 (2000.0) C(Buscombe) V=11.8 B-V=.22 U-B=-.16

  Takamizawa's comment:

  The star may be a semiregular variable  with  a renge of 11.6-12.1p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV203        940910.704  116p  Tmz.VSOLJ
TmzV203        941108.558  117p  Tmz.VSOLJ
TmzV203        941223.461  119p  Tmz.VSOLJ
TmzV203        950320.485  117p  Tmz.VSOLJ
TmzV203        950823.720  117p  Tmz.VSOLJ
TmzV203        951127.554  119p  Tmz.VSOLJ
TmzV203        961229.422  120p  Tmz.VSOLJ
TmzV203        970714.728  119p  Tmz.VSOLJ
TmzV203        970802.707  119p  Tmz.VSOLJ
TmzV203        971010.688  117p  Tmz.VSOLJ
TmzV203        971123.526  118p  Tmz.VSOLJ
TmzV203        971221.456  119p  Tmz.VSOLJ
TmzV203        980820.706  117p  Tmz.VSOLJ
TmzV203        990109.498  121p  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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