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[vsnet-newvar 1140] New Takamizawa variable (TmzV829)

New Takamizawa variable (TmzV829)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV829).

TmzV829
= GSC7467.1486 203254.77 -354330.7 (2000.0) 11.91 0
= USNO0525.35154600 203254.738 -354330.57 (2000.0)  8.8 11.8
= 2MASS 203254.768 -354330.00 (2000.0)  0.000  0.000  0.000
= IRAS20297-3553 202942.7 -355347 (1950.0)
     F12=10.96  F25=4.36  F60=0.76  F100=1.00L
     VAR=33 LRS=16
     blue featureless, spec.index=3.0
     II: variable star with 'young' O-rich circumstellar shell
= 203253.7 -354332 (2000.0) FSC20297-3553 11.560 4.491 0.581 0.934L
= 203254.4 -354332 (2000.0) IRAS20297-3553 10.550 4.567 0.779 1.000L 33% 3(LRS)
= 203254.4 -354332 (2000.0) SSC20297-3553 10.550 4.567 0.779 1.000L
= 203254.7 -354330 (2000.0) 1100 1.58 TYC2-7467.1486.1 (11.17 0.08) (13.02 0.29)
= 203252.8 -354302 (2000.0) CD-36.14221 9.9

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 10.1-11.7p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV829        19940810.644  101p  Tmz.VSOLJ
TmzV829        19950723.620  117p  Tmz.VSOLJ
TmzV829        19950921.518  110p  Tmz.VSOLJ
TmzV829        19960815.559  111p  Tmz.VSOLJ
TmzV829        19960815.562  111p  Tmz.VSOLJ
TmzV829        19970706.698  113p  Tmz.VSOLJ
TmzV829        20011013.435  109p  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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