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[vsnet-newvar 1254] New Takamizawa variable (TmzV892)

New Takamizawa variable (TmzV892)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV892).

TmzV892
= GSC4055.175 023422.20 +651848.7 (2000.0) 12.43 1
= USNO1500.02527175 023422.194 +651848.62 (2000.0) 11.2 16.8
= IRAS02303+6505 023018.5 +650538 (1950.0)
     F12=0.91  F25=0.30  F60=0.44L F100=3.63L
     VAR= 7 LRS=-1
  possibly I: oxygen-rich non-variable star without 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
= 023421.3 +651846 (2000.0) IRAS02303+6505 0.895 0.298 0.446L 3.546L 7%
= 023421.3 +651846 (2000.0) SSC02303+6505 0.895 0.298 0.446L 3.546L
= 023422.2 +651850 (2000.0) CS367 - - 9.5 -

  Takamizawa's comment:

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

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV892        19950127.432  128p  Tmz.VSOLJ
TmzV892        19960922.656  132p  Tmz.VSOLJ
TmzV892        19970613.737  129p  Tmz.VSOLJ
TmzV892        19980116.420  136p  Tmz.VSOLJ
TmzV892        19980629.693  130p  Tmz.VSOLJ
TmzV892        19991128.440  133p  Tmz.VSOLJ
TmzV892        20000902.687  133p  Tmz.VSOLJ
TmzV892        20011023.613  130p  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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