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[vsnet-obs 21968] New Takamizawa variable (TmzV485)

New Takamizawa variable (TmzV485)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV485).

TmzV485
= GSC6031.1076 090942.31 -174043.8 (2000.0) 12.34 0
= GSC6031.1076 090942.34 -174043.8 (2000.0) 11.91 0
= GSC6031.1076 090942.42 -174044.4 (2000.0) 12.37 0
= USNO0675.07211174 090942.306 -174044.31 (2000.0) 11.1 13.0
= IRAS09073-1728 090722.1 -172824 (1950.0)
    F12=0.52  F25=0.25L F60=0.40L F100=1.00L
    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
= 090941.3 -174038 (2000.0) IRAS09073-1728 0.541 0.250L 0.400L 1.000L -1%
= 090941.3 -174038 (2000.0) SSC09073-1728 0.541 0.250L 0.400L 1.000L
= 090941.7 -174040 (2000.0) FSC09073-1728 0.493 0.143 0.122L 0.566L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.7-12.3p.

object         YYMMDD(UT)   mag  code
TmzV485        941109.794  117p  Tmz.VSOLJ
TmzV485        950203.655  121p  Tmz.VSOLJ
TmzV485        960112.567  121p  Tmz.VSOLJ
TmzV485        971105.778  120p  Tmz.VSOLJ
TmzV485        980102.642  122p  Tmz.VSOLJ
TmzV485        980125.544  123p  Tmz.VSOLJ
TmzV485        980322.524  122p  Tmz.VSOLJ
TmzV485        980329.476  124p  Tmz.VSOLJ
TmzV485        981117.801  120p  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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