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[vsnet-newvar 1209] New Takamizawa variable (TmzV879)

New Takamizawa variable (TmzV879)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV879).

TmzV879
= GSC3694.975 022544.85 +580445.8 (2000.0) 12.81 1
= USNO1425.03476334 022544.880 +580445.73 (2000.0) 12.5 16.1
= IRAS02221+5751 022207.8 +575111 (1950.0)
     F12=0.91  F25=0.48  F60=0.48L F100=7.58L
     VAR=47 LRS=-1
  possibly IIIa: variable star with more evolved O-rich c.s. shell
  or VIb: variable star with relatively hot dust close to
       the star and relatively cold dust at large distance
       may be O-rich
  or VII: variable star with more evolved C-rich circumstellar shell
= 022544.2 +580441 (2000.0) IRAS02221+5751 0.924 0.469 0.477L 7.473L 47%
= 022544.2 +580441 (2000.0) SSC02221+5751 0.924 0.469 0.477L 7.473L
= 022545.0 +580442 (2000.0) MSX5C_G135.1546-02.5374 -35 -18 1 -2 -1 4 V(%):-:-:4:-:-:-

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.0-13.8p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV879        19950127.432  131p  Tmz.VSOLJ
TmzV879        19951127.538  134p  Tmz.VSOLJ
TmzV879        19960922.656  132p  Tmz.VSOLJ
TmzV879        19970613.737  138p  Tmz.VSOLJ
TmzV879        19980116.420  135p  Tmz.VSOLJ
TmzV879        19980629.693  132p  Tmz.VSOLJ
TmzV879        19980703.724  130p  Tmz.VSOLJ
TmzV879        19991128.440  133p  Tmz.VSOLJ
TmzV879        20000902.678  135p  Tmz.VSOLJ
TmzV879        20011023.605  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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