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[vsnet-obs 15537] New Takamizawa variable star (TmzV72)

New Takamizawa variable star (TmzV72)

  Kesao Takamizawa (Nagano, Japan) reports his discovery of a new variable
star (TmzV72).

TmzV72 = GSC5648.581 171013.95 -101850.4 (2000.0) 15.88 0
       = GSC5648.581 171013.95 -101850.2 (2000.0) 14.18 0
       = 171013.7 -101850 (2000.0) FSC17074-1015 0.348 0.172 0.370L 2.339L
       = 171014.3 -101853 (2000.0) IRAS17074-1015 0.402 0.399L 0.400L 1.840L -1%
       = 171014.3 -101853 (2000.0) SSC17074-1015 0.402 0.399L 0.400L 1.840L

  Differnct magnitudes in two epochs of GSC photometry probably suggested
the variability.

  Takamizawa's comment:

       The star may be a Mira-type classification with a range of 13.3-<15.6p,
       and period of about 206days.
       The star is visible at mag.~15 on Real-Sky CD.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV72         940217.836  147p  Tmz.VSOLJ
TmzV72         940411.802  <148p  Tmz.VSOLJ
TmzV72         940506.690  <156p  Tmz.VSOLJ
TmzV72         940603.640  <156p  Tmz.VSOLJ
TmzV72         940925.459  135p  Tmz.VSOLJ
TmzV72         941022.392  141p  Tmz.VSOLJ
TmzV72         950127.838  <148p  Tmz.VSOLJ
TmzV72         950210.794  <148p  Tmz.VSOLJ
TmzV72         950226.767  <148  Tmz.VSOLJ
TmzV72         950426.676  139p  Tmz.VSOLJ
TmzV72         960126.829  <148p  Tmz.VSOLJ
TmzV72         960221.797  155p  Tmz.VSOLJ
TmzV72         960509.592  139p  Tmz.VSOLJ
TmzV72         960619.567  137p  Tmz.VSOLJ
TmzV72         970212.819  148p  Tmz.VSOLJ
TmzV72         970305.791  <148p  Tmz.VSOLJ
TmzV72         970606.651  <156p  Tmz.VSOLJ
TmzV72         970701.531  <148p  Tmz.VSOLJ
TmzV72         971025.389  <136p  Tmz.VSOLJ
TmzV72         980125.840  143p  Tmz.VSOLJ
TmzV72         980302.760  133p  Tmz.VSOLJ
TmzV72         980325.740  140p  Tmz.VSOLJ
TmzV72         980520.595  <148p  Tmz.VSOLJ
TmzV72         980629.569  153p  Tmz.VSOLJ
TmzV72         980912.494  134p  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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