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[vsnet-newvar 284] New Takamizawa variable (TmzV728)

New Takamizawa variable (TmzV728)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV728).

TmzV728
= GSC3971.294 214208.77 +545802.4 (2000.0) 13.12 1
= USNO1425.12348648 214208.806 +545802.47 (2000.0) 12.5 16.9
= IRAS21404+5444 214029.5 +544418 (1950.0)
    F12=2.09  F25=0.91L F60=251.14L F100=69.17L
    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
= 214209.2 +545802 (2000.0) IRAS21404+5444 2.112 0.947L 245.800L 70.680L -1%
= 214209.2 +545802 (2000.0) SSC21404+5444 2.112 0.947L 245.800L 70.680L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.1-13.6p.

object         YYYYMMDD(UT)   mag  code
TmzV728        19940903.567  133p  Tmz.VSOLJ
TmzV728        19941127.492  131p  Tmz.VSOLJ
TmzV728        19951212.460  136p  Tmz.VSOLJ
TmzV728        19970824.567  132p  Tmz.VSOLJ
TmzV728        19970827.549  131p  Tmz.VSOLJ
TmzV728        19971218.393  136p  Tmz.VSOLJ
TmzV728        19980823.571  135p  Tmz.VSOLJ
TmzV728        19980916.541  133p  Tmz.VSOLJ
TmzV728        19990709.583  136p  Tmz.VSOLJ
TmzV728        19990807.602  131p  Tmz.VSOLJ
TmzV728        19991226.386  135p  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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