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[vsnet-newvar 131] New Takamizawa variable (TmzV633)

New Takamizawa variable (TmzV633)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV633).

TmzV633
= GSC4249.719 214243.32 +614534.8 (2000.0) 13.16 6
= GSC4249.719 214243.35 +614535.4 (2000.0) 12.94 1
= USNO1500.08383361 214243.307 +614535.23 (2000.0) 12.0 15.4
= IRAS21413+6131 214119.6 +613156 (1950.0)
    F12=10.00  F25=4.36  F60=0.83  F100=2.29L
    VAR= 1 LRS=16
    blue featureless, spec.index=3.0
    II: variable star with 'young' O-rich circumstellar shell
= 214239.5 +614527 (2000.0) TMSS+60324
= 214243.1 +614541 (2000.0) IRAS21413+6131 10.110 4.329 0.811 2.316L 1% 2(LRS)
= 214243.1 +614541 (2000.0) SSC21413+6131 10.110 4.329 0.811 2.316L
= 214242.0 +614500 (2000.0) M8(II)(Buscombe) V=12.7 B-V=.48 U-B=.08

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.8-13.6p.

object         YYYYMMDD(UT)   mag  code
TmzV633        19940903.562  131p  Tmz.VSOLJ
TmzV633        19970824.567  136p  Tmz.VSOLJ
TmzV633        19970827.540  134p  Tmz.VSOLJ
TmzV633        19971218.437  129p  Tmz.VSOLJ
TmzV633        19980823.562  130p  Tmz.VSOLJ
TmzV633        19980916.530  129p  Tmz.VSOLJ
TmzV633        19990709.574  133p  Tmz.VSOLJ
TmzV633        19990807.594  133p  Tmz.VSOLJ
TmzV633        19991226.462  128p  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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