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[vsnet-newvar 1119] New Takamizawa variable (TmzV811)

New Takamizawa variable (TmzV811)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV811).

TmzV811
= GSC5189.71 203934.64 -065003.9 (2000.0) 13.22 0 N
= GSC5189.71 203934.67 -065003.9 (2000.0) 13.56 0
= USNO0825.18634808 203934.658 -065004.10 (2000.0) 11.2 13.9
= 2MASS 203934.676 -065004.78 (2000.0)  6.380  0.000  5.111
= IRAS20368-0700 203653.6 -070047 (1950.0)
     F12=0.91  F25=0.44  F60=0.40L F100=1.00L
     VAR=48 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
= 203933.3 -065007 (2000.0) FSC20368-0700 0.884 0.446 0.194L 1.214L
= 203933.5 -065008 (2000.0) IRAS20368-0700 0.899 0.451 0.400L 1.000L 48%
= 203933.5 -065008 (2000.0) SSC20368-0700 0.899 0.451 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 12.7-13.6p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV811        19940413.778  133p  Tmz.VSOLJ
TmzV811        19940703.654  135p  Tmz.VSOLJ
TmzV811        19940803.576  133p  Tmz.VSOLJ
TmzV811        19940810.663  131p  Tmz.VSOLJ
TmzV811        19940930.528  132p  Tmz.VSOLJ
TmzV811        19941102.444  128p  Tmz.VSOLJ
TmzV811        19941127.412  129p  Tmz.VSOLJ
TmzV811        19950306.828  135p  Tmz.VSOLJ
TmzV811        19950311.834  136p  Tmz.VSOLJ
TmzV811        19950401.788  133p  Tmz.VSOLJ
TmzV811        19950723.647  135p  Tmz.VSOLJ
TmzV811        19951014.506  133p  Tmz.VSOLJ
TmzV811        19960815.567  128p  Tmz.VSOLJ
TmzV811        19961030.456  136p  Tmz.VSOLJ
TmzV811        19970309.826  136p  Tmz.VSOLJ
TmzV811        19970706.678  136p  Tmz.VSOLJ
TmzV811        19970901.582  134p  Tmz.VSOLJ
TmzV811        19971025.526  127p  Tmz.VSOLJ
TmzV811        19990708.663  134p  Tmz.VSOLJ
TmzV811        20000314.817  128p  Tmz.VSOLJ
TmzV811        20011013.451  130p  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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