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[vsnet-newvar 1333] New Takamizawa variable (TmzV934)

New Takamizawa variable (TmzV934)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV934).

TmzV934
= GSC4297.508 011618.32 +674523.0 (2000.0) 10.79 1
= USNO1575.00797267 011618.343 +674522.87 (2000.0) 10.7 14.6 *
= IRAS01128+6729 011252.9 +672934 (1950.0)
     F12=1.00  F25=0.25  F60=0.40L F100=1.90L
     VAR=15 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
= 011618.4 +674523 (2000.0) IRAS01128+6729 1.023 0.239 0.400L 1.912L 15%
= 011618.4 +674523 (2000.0) SSC01128+6729 1.023 0.239 0.400L 1.912L
= 011618.3 +674522 (2000.0) 1117 2.49 TYC2-4297.508.1 (11.43 0.09) (14.36 0.47)
= 011636.3 +674343 (2000.0) DO24172

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.8-11.6p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV934        19950120.474  116p  Tmz.VSOLJ
TmzV934        19970517.718  113p  Tmz.VSOLJ
TmzV934        19970703.727  114p  Tmz.VSOLJ
TmzV934        19980116.397  113p  Tmz.VSOLJ
TmzV934        19980823.617  109p  Tmz.VSOLJ
TmzV934        19981011.414  113p  Tmz.VSOLJ
TmzV934        19990105.447  115p  Tmz.VSOLJ
TmzV934        20000529.751  114p  Tmz.VSOLJ
TmzV934        20001216.393  115p  Tmz.VSOLJ
TmzV934        20010520.749  108p  Tmz.VSOLJ
TmzV934        20011116.528  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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