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[vsnet-newvar 1281] New Takamizawa variable (TmzV895)

New Takamizawa variable (TmzV895)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV895).

TmzV895
= GSC4041.1762 021533.50 +641609.6 (2000.0) 12.94 1
= IRAS02117+6402 021144.9 +640217 (1950.0)
     F12=2.29  F25=0.76  F60=0.63L F100=7.58L
     VAR= 0 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
= 021533.2 +641609 (2000.0) MSX5C_G131.9058+02.8731 -33 -18 3 2 -1 -5 V(%):-:-:0:-:-:-
= 021533.5 +641609 (2000.0) CS325 - 11.2: 10.1 -
= 021534.5 +641613 (2000.0) IRAS02117+6402 2.264 0.758 0.605L 7.558L 0%
= 021534.5 +641613 (2000.0) SSC02117+6402 2.264 0.758 0.605L 7.558L
= 021535.9 +641559 (2000.0) C(Buscombe) V=11.2 B-V=.66 U-B=.15

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.8-14.3p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV895        19950127.432  143p  Tmz.VSOLJ
TmzV895        19960922.656  138p  Tmz.VSOLJ
TmzV895        19970613.737  128p  Tmz.VSOLJ
TmzV895        19980116.420  141p  Tmz.VSOLJ
TmzV895        19980629.693  129p  Tmz.VSOLJ
TmzV895        19991128.440  139p  Tmz.VSOLJ
TmzV895        20000902.687  130p  Tmz.VSOLJ
TmzV895        20011023.613  138p  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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