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[vsnet-newvar 184] New Takamizawa variable (TmzV644)

New Takamizawa variable (TmzV644)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV644).

TmzV644
= GSC4263.1060 220148.16 +611729.9 (2000.0) 13.69 6
= USNO1500.08762702 220148.122 +611729.63 (2000.0) 13.4 17.4
= IRAS22002+6103 220015.2 +610302 (1950.0)
    F12=0.63  F25=0.17  F60=0.52L F100=6.31L
    VAR=18 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 220148.6 +611731 (2000.0) IRAS22002+6103 0.630 0.174 0.522L 6.488L 18%
= 220148.6 +611731 (2000.0) SSC22002+6103 0.630 0.174 0.522L 6.488L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.8-14.5p.

object         YYYYMMDD(UT)   mag  code
TmzV644        19940903.562  141p  Tmz.VSOLJ
TmzV644        19970824.567  139p  Tmz.VSOLJ
TmzV644        19970827.540  138p  Tmz.VSOLJ
TmzV644        19971218.437  142p  Tmz.VSOLJ
TmzV644        19980823.562  141p  Tmz.VSOLJ
TmzV644        19980916.530  143p  Tmz.VSOLJ
TmzV644        19990709.574  143p  Tmz.VSOLJ
TmzV644        19990807.594  145p  Tmz.VSOLJ
TmzV644        19991226.462  143p  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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