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[vsnet-newvar 1287] New Takamizawa variable (TmzV901)

New Takamizawa variable (TmzV901)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV901).

TmzV901
= GSC4058.391 022231.38 +665940.3 (2000.0) 14.63 1
= USNO1500.02382667 022231.430 +665940.47 (2000.0) 12.8 19.9
= IRAS02184+6645 021828.3 +664559 (1950.0)
     F12=0.83  F25=0.28L F60=0.40L F100=9.12L
     VAR=-1 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
= 022231.5 +665941 (2000.0) CS338 - - 10.4 -
= 022232.0 +665938 (2000.0) IRAS02184+6645 0.854 0.273L 0.410L 8.766L -1%
= 022232.0 +665938 (2000.0) SSC02184+6645 0.854 0.273L 0.410L 8.766L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.9-14.7p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV901        19950127.432  146p  Tmz.VSOLJ
TmzV901        19960922.656  147p  Tmz.VSOLJ
TmzV901        19970613.737  143p  Tmz.VSOLJ
TmzV901        19980116.420  143p  Tmz.VSOLJ
TmzV901        19980629.693  144p  Tmz.VSOLJ
TmzV901        19991128.440  145p  Tmz.VSOLJ
TmzV901        20000902.687  145p  Tmz.VSOLJ
TmzV901        20011023.613  139p  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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